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  • profile文件的错误加载与基本命令间的映射

    一、绪论

      【因为这篇心得是原创的,所以如果有哪处总结或者意见不足的地方,欢迎各位大神的批评和意见,共同学习,谢谢了!】

      早些时候,需要在centos6.4系统中配置单机版和集群版单节点的hadoop HDFS,由于那时候一边跟老师学hadoop一边自学Linux。初学的自己懂得也不多,别人都用普通用户登录,在需要root权限时才sudo或者切换root用户进行配置,而我呢? 从一开始就使用了root登录,在给java和hadoop配置了profile文件环境变量,等到重启之后,出现了下图的现象:进入系统用户登录界面后,原本的鼠标小指针一直都是小时钟的样子,无论怎么点击都是能移动但是指针的形状偏偏就变不回来,也无法登录。

      那无法登陆了,肿么办?下意识就问老师吧,可他说他也没碰到过这种奇怪的现象。也对,但凡是规范的操作又怎么会碰到我的这种现象呢?想必极为少数吧!没有了老师的帮助,那时候我一贯的做法就是:强制关机-重启=不行,正常关机-重启=不行,之后便干脆直接放弃了整个系统,启用新系统从头开始配置HDFS。这个鼠标指针变成小时钟而无法登陆的现象,到现在前前后后碰到不下十遍,也由此令我一直耿耿于心,希望这篇心得能帮到更多与我类似困窘的人吧!

      这几个月来,其实,我一直都在追寻是什么原因导致的系统用户无法登陆,以及系统的各个配置文件都有些什么作用?下面先讲该怎么恢复系统的登录先吧!

    二、恢复正常登录

      profile文件的错误加载而导致系统用户无法登录的现象,主要有两类:profile文件的内容配置错误、profile文件在进行vi时被挂起。如果是profile文件的内容配置错误,解决的办法:一是删除所有自定义配置的内容,但这种方法个人很不推荐;二是没有加载系统变量。至于profile文件在进行vi时被挂起,解决的办法就是恢复该文件,再删除生成的临时挂起文件。

    (1)加载系统变量恢复

      1、切换到字符界面。可按Ctrl+Alt+F6,由用户图形界面切换到字符界面。

      2、登陆用户。这里由于用户图形界面本身就是一个应用程序,而不是Linux内核的一部分,所以即使图形用户界面完完全全地崩溃了,也是丝毫不影响我们使用字符界面进行常规的操作。这里,因为是系统的登录界面损坏,所以建议登录最高权限用户root。

       

      3、编辑profile文件。执行如下错误,查找并修改错误配置内容:

    /usr/bin/vim /etc/profile

      可以看到我这里缺少了明显的系统传递参数:$PATH   。需要注意的是:如果 export PATH=  后面有多个变量值,在值与值之间需要使用英文的“ : ”符号隔开。具体修改如下:

      如果打开的profile文件中,已经存在了$PATH,那么导致图形界面无法进行用户登录的原因,很可能就是自定义部分的内容存在手动输入错误。如:缺少某个字符或者字符错误。倘若,仍然无法找到错误的根源,建议将所有自定义配置的内容进行删除。

      4、保存退出后,输入一下内容进行重启,重启后便可恢复正常登录。

    /usr/bin/reboot

      如果不进行重启的话,也可以使用source命令让profile文件进行生效,但是不建议。因为这种方式容易导致profile文件的配置生效不完全。

     (2)恢复挂起的profile文件

       如果在配置profile文件内容时,中途断电或者强迫退出vim编辑,那么就会在/etc/目录下,临时生成profile.swp的隐藏文件,可以使用ll -a或者ls -a来查看是否存在.swp文件。在确保profile配置信息没有错误之后,记得删除该文件。删除的命令不再是" rm -rf profile.swp ",因为在profile文件错误加载的情况下rm命令不可直接使用,要在前面加上路径名称。具体的步骤类似上面的过程,区别在于第3步后,需要删除该隐藏文件再重启。

    三、基本映射作用

      没错,前面所执行的命令,如简单的重启:

    /usr/bin/reboot

      都在命令前加了路径名称。那么为什么需要加路径名称而不能直接使用呢?这和profile配置文件又有什么关联呢?如果每个命令都需要加前缀路径,这些前缀都相同吗?如果命令相同那么为什么执行下面的命令,会提示“No such file or directory”呢?

    yang@cMaster:~]#/usr/bin/ls /etc/profile 
    bash: /usr/bin/ls: No such file or directory

    (1)profile文件的映射类型

       我们知道profile文件可进行环境变量的配置,那么对于命令的映射类型有两种:用户变量和系统变量,类似于我们win10的系统环境一样:

       我们先看一下Linux系统下的$PATH都有哪些内容?使用前面修复过的系统,登录并进入命令终端,输入如下命令并查看返回信息:

    yang@cMaster:~]#which $PATH
    /usr/bin/which: no bin in (/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/java/jdk1.8.0_161/bin:/home/yang)

      可见,“which”这个命令是属于/usr/bin/ 目录下的。至于每个常用的命令都在哪个目录下,这里先不讨论。我想说的是,我这里需要提出两个概念词,或许早有人为此下过定义,这里姑且暂用。我提出的概念是:权限比重、优先度。在权限比重方面,例如:“ /bin ”要比 “ /usr/local/bin ”权限大的多,但是“ /usr/local/bin ”的优先度级别比“ /bin ”还大。简而言之,就是用户登录系统后先使用的命令默认是 “ /usr/local/bin ”下的,当 “ /usr/local/bin ”找不到才到第二级别更高权限的“ /bin ”去找,这对于“/sbin”和“usr/sbin”一样的道理。这是对于单用户来说,如果我这里的yang用户需要root的权限,当sudo一下时,会跳出这些目录而去使用root用户“ /bin ”、 “ /usr/local/bin ”目录下的命令等等。

      我们完全可以这样来假设,“ /bin ”和“/sbin”是系统环境下的指令库,而“ /usr/local/bin ”和“usr/sbin”为用户环境下的指令集。也就是,可以大胆地假设一下,对于centos6.4来说:每个Linux用户都存在一个系统环境和一个用户环境。

      但其实在centos8里,“ /bin ”就是 “/usr/bin”的链接,“/sbin”也是 “/usr/sbin”的链接。

    (2)profile文件的映射作用

      1、root用户所定义下的profile环境内容,其他用户环境可继承性较大;

      2、profile文件用于登录设置的全系统环境和启动程序。利用vi查看一下profile文件,内容如下:

    # /etc/profile
    
    # System wide environment and startup programs, for login setup
    # Functions and aliases go in /etc/bashrc
    
    # It's NOT a good idea to change this file unless you know what you
    # are doing. It's much better to create a custom.sh shell script in
    # /etc/profile.d/ to make custom changes to your environment, as this
    # will prevent the need for merging in future updates.
    
    pathmunge () {
        case ":${PATH}:" in
            *:"$1":*)
                ;;
            *)
                if [ "$2" = "after" ] ; then
                    PATH=$PATH:$1
                else
                    PATH=$1:$PATH
                fi
        esac
    }
    
    
    if [ -x /usr/bin/id ]; then
        if [ -z "$EUID" ]; then
            # ksh workaround
            EUID=`id -u`
            UID=`id -ru`
        fi
        USER="`id -un`"
        LOGNAME=$USER
        MAIL="/var/spool/mail/$USER"
    fi
    
    # Path manipulation
    profile文件部分信息

        将“# /etc/profile# System wide environment and startup programs, for login setup# Functions and aliases go in /etc/bashrc# It's NOT a good idea to change this file unless you know what you# are doing. It's much better to create a custom.sh shell script in# /etc/profile.d/ to make custom changes to your environment, as this# will prevent the need for merging in future updates.”粘贴到百度翻译一下:

        这也恰恰说明了,为什么profile文件配置不好,会出现鼠标指针变成小时钟而无法登陆的现象。

      3、profile配置文件所自定义的内容,如:export PATH= 后面必须必须跟随传递参数:$PATH 。当不配置export PATH=的值时,$PATH为隐藏属性。当export PATH=的值被配置时,$PATH的作用是将“ /bin ”、“/sbin”、“ /usr/local/bin ”和“usr/sbin”等目录下的命令进行聚集和简化路径。这也正是,为什么当profile配置文件损坏时,必须在命令前加路径名称的缘故。但是每个命令的路径名称又是什么呢?

     (3)常用命令的映射目录

      还记得前边说到的,在profile文件不起作用时,要删除profile挂起的临时文件,必须要在rm命令的前面加了上命令的路径名称,不然会提示No such file or directory相类似的错误。当which $PATH一下,也看到过列举了一些路径,我们逐个进去看看:

    yang@cMaster:~]#ll /usr/local/bin
    total 0
    ll /usr/local/bin
    -rwxr-xr-x. 1 root root      87352 Jul 11  2012 pulseaudio
    -rwxr-xr-x. 1 root root       1420 Sep 11  2012 pv.sh
    -rwxr-xr-x. 1 root root      10152 Nov 15  2012 pwdx
    -rwxr-xr-x. 1 root root         78 Feb 21  2013 pydoc
    -rwxr-xr-x. 1 root root        188 Aug 20  2010 pygtk-demo
    -rwxr-xr-x. 2 root root       9032 Feb 21  2013 python
    lrwxrwxrwx. 1 root root          6 May 14  2018 python2 -> python
    -rwxr-xr-x. 2 root root       9032 Feb 21  2013 python2.6
    -rwxr-xr-x. 1 root root      82752 Nov 20  2012 quota
    -rwxr-xr-x. 1 root root      65856 Nov 20  2012 quotasync
    -rwxr-xr-x. 1 root root      60984 Feb 21  2013 ranlib
    -rwxr-xr-x. 1 root root      10168 Aug 18  2010 rarian-example
    -rwxr-xr-x. 1 root root       1495 Aug 18  2010 rarian-sk-config
    -rwxr-xr-x. 1 root root        563 Aug 18  2010 rarian-sk-extract
    -rwxr-xr-x. 1 root root       9288 Aug 18  2010 rarian-sk-gen-uuid
    -rwxr-xr-x. 1 root root      80856 Aug 18  2010 rarian-sk-get-cl
    -rwxr-xr-x. 1 root root        399 Aug 18  2010 rarian-sk-get-content-list
    -rwxr-xr-x. 1 root root        419 Aug 18  2010 rarian-sk-get-extended-content-list
    -rwxr-xr-x. 1 root root        382 Aug 18  2010 rarian-sk-get-scripts
    -rwxr-xr-x. 1 root root       1171 Aug 18  2010 rarian-sk-install
    -rwxr-xr-x. 1 root root      89280 Aug 18  2010 rarian-sk-migrate
    -rwxr-xr-x. 1 root root      78568 Aug 18  2010 rarian-sk-preinstall
    -rwxr-xr-x. 1 root root        821 Aug 18  2010 rarian-sk-rebuild
    -rwxr-xr-x. 1 root root       9525 Aug 18  2010 rarian-sk-update
    -rwxr-xr-x. 1 root root      14672 Dec 18  2012 ras2tiff
    -rwxr-xr-x. 1 root root      20056 Dec 18  2012 raw2tiff
    lrwxrwxrwx. 1 root root         28 Jun  6  2018 rcs2log -> ../share/cvs/contrib/rcs2log
    -rwxr-xr-x. 1 root root      13560 Nov 11  2010 rdate
    -rwxr-xr-x. 1 root root      12480 Feb 21  2013 rdjpgcom
    lrwxrwxrwx. 1 root root         33 May 14  2018 readcd -> /etc/alternatives/cdrecord-readcd
    -rwxr-xr-x. 1 root root     303984 Feb 21  2013 readelf
    lrwxrwxrwx. 1 root root         18 May 14  2018 readlink -> ../../bin/readlink
    -rwxr-xr-x. 1 root root        800 Nov 12  2012 readmult
    -rwxr-xr-x. 1 root root     195632 Nov 12  2012 readom
    lrwxrwxrwx. 1 root root         13 May 14  2018 reboot -> consolehelper
    -rwxr-xr-x. 1 root root      15528 Jun  2  2014 recode-sr-latin
    -rwxr-xr-x. 1 root root     128936 Nov 11  2010 refer
    -rwxr-xr-x. 1 root root       9896 Feb 21  2013 rename
    -rwxr-xr-x. 1 root root      10624 Feb 21  2013 renice
    -rwxr-xr-x. 1 root root      11619 Jun 22  2012 repoclosure
    -rwxr-xr-x. 1 root root      11707 Jun 22  2012 repodiff
    -rwxr-xr-x. 1 root root       4196 Jun 22  2012 repo-graph
    -rwxr-xr-x. 1 root root       7048 Jun 22  2012 repomanage
    -rwxr-xr-x. 1 root root      45778 Jun 22  2012 repoquery
    -rwxr-xr-x. 1 root root      10225 Jun 22  2012 repo-rss
    -rwxr-xr-x. 1 root root      10952 Feb 22  2013 report
    -rwxr-xr-x. 1 root root      31144 Feb 22  2013 report-cli
    -rwxr-xr-x. 1 root root      22896 Feb 22  2013 reporter-kerneloops
    -rwxr-xr-x. 1 root root      14656 Feb 22  2013 reporter-mailx
    -rwxr-xr-x. 1 root root      13528 Feb 22  2013 reporter-print
    -rwxr-xr-x. 1 root root      40272 Feb 22  2013 reporter-rhtsupport
    -rwxr-xr-x. 1 root root      26744 Feb 22  2013 reporter-upload
    -rwxr-xr-x. 1 root root     127784 Feb 22  2013 report-gtk
    -rwxr-xr-x. 1 root root      20960 Feb 22  2013 report-newt
    -rwxr-xr-x. 1 root root      13626 Jun 22  2012 reposync
    -rwxr-xr-x. 1 root root       8740 Jun 22  2012 repotrack
    lrwxrwxrwx. 1 root root          4 May 14  2018 reset -> tset
    -rwxr-xr-x. 1 root root      19520 Nov 11  2010 resizecons
    -rwxr-xr-x. 1 root root      10168 Feb 21  2013 rev
    -rwxr-xr-x. 1 root root      36136 Nov 10  2010 rfcomm
    -rwxr-xr-x. 1 root root      16072 Dec 18  2012 rgb2ycbcr
    lrwxrwxrwx. 1 root root         18 May 14  2018 rhgb-client -> ../../bin/plymouth
    -rwxr-xr-x. 1 root root      54984 Nov 11  2010 rhythmbox
    -rwxr-xr-x. 1 root root      33144 Nov 11  2010 rhythmbox-client
    lrwxrwxrwx. 1 root root         27 May 14  2018 rmail -> /etc/alternatives/mta-rmail
    -rwxr-xr-x. 1 root root        262 Dec  2  2011 rmail.postfix
    lrwxrwxrwx. 1 root root         22 Jul  5  2018 rmic -> /etc/alternatives/rmic
    lrwxrwxrwx. 1 root root         22 Jul  5  2018 rmid -> /etc/alternatives/rmid
    lrwxrwxrwx. 1 root root         29 Jul  5  2018 rmiregistry -> /etc/alternatives/rmiregistry
    lrwxrwxrwx. 1 root root         15 May 14  2018 rnano -> ../../bin/rnano
    -rwxr-xr-x. 1 root root      16848 Dec 17  2011 rngtest
    -rwxr-xr-x. 1 root root      95704 Feb 21  2013 rpcgen
    -rwxr-xr-x. 1 root root      16040 Feb 21  2013 rpm2cpio
    lrwxrwxrwx. 1 root root         13 May 14  2018 rpmdb -> ../../bin/rpm
    lrwxrwxrwx. 1 root root         13 May 14  2018 rpmquery -> ../../bin/rpm
    lrwxrwxrwx. 1 root root         13 May 14  2018 rpmsign -> ../../bin/rpm
    lrwxrwxrwx. 1 root root         13 May 14  2018 rpmverify -> ../../bin/rpm
    -rwxr-xr-x. 1 root root       2500 Feb 24  2012 rsvg
    -rwxr-xr-x. 1 root root      28896 Feb 24  2012 rsvg-convert
    -rwxr-xr-x. 1 root root      44080 Feb 24  2012 rsvg-view
    -rwxr-xr-x. 1 root root     415000 Apr 11  2012 rsync
    -rwxr-xr-x. 1 root root      31888 Jun 22  2012 runcon
    -rwxr-xr-x. 1 root root       1411 Sep 26  2011 run-parts
    lrwxrwxrwx. 1 root root          3 May 14  2018 rvim -> vim
    -rwxr-xr-x. 2 root root      53325 Mar 22  2017 s2p
    -rwxr-xr-x. 1 root root     111496 Jun 22  2012 sadf
    -rwxr-xr-x. 1 root root     139480 Nov 11  2010 sane-find-scanner
    -rwxr-xr-x. 1 root root      81192 Jun 22  2012 sar
    -rwxr-xr-x. 1 root root       5896 Nov 10  2010 saytime
    -rwxr-xr-x. 1 root root      52304 Nov 11  2010 scanimage
    lrwxrwxrwx. 1 root root         27 Jul  5  2018 schemagen -> /etc/alternatives/schemagen
    -rwxr-xr-x. 1 root root      15640 Feb 21  2013 scl
    -rwxr-xr-x. 1 root root        258 Feb 21  2013 scl_enabled
    -rwxr-xr-x. 1 root root      59456 Feb 21  2013 scp
    -rwxr-xr-x. 1 root root      16632 Feb 21  2013 script
    -rwxr-xr-x. 1 root root      11176 Feb 21  2013 scriptreplay
    lrwxrwxrwx. 1 root root         16 May 14  2018 scrollkeeper-config -> rarian-sk-config
    lrwxrwxrwx. 1 root root         17 May 14  2018 scrollkeeper-extract -> rarian-sk-extract
    lrwxrwxrwx. 1 root root         18 May 14  2018 scrollkeeper-gen-seriesid -> rarian-sk-gen-uuid
    lrwxrwxrwx. 1 root root         16 May 14  2018 scrollkeeper-get-cl -> rarian-sk-get-cl
    lrwxrwxrwx. 1 root root         26 May 14  2018 scrollkeeper-get-content-list -> rarian-sk-get-content-list
    lrwxrwxrwx. 1 root root         35 May 14  2018 scrollkeeper-get-extended-content-list -> rarian-sk-get-extended-content-list
    lrwxrwxrwx. 1 root root         21 May 14  2018 scrollkeeper-get-index-from-docpath -> rarian-sk-get-scripts
    lrwxrwxrwx. 1 root root         21 May 14  2018 scrollkeeper-get-toc-from-docpath -> rarian-sk-get-scripts
    lrwxrwxrwx. 1 root root         21 May 14  2018 scrollkeeper-get-toc-from-id -> rarian-sk-get-scripts
    lrwxrwxrwx. 1 root root         17 May 14  2018 scrollkeeper-install -> rarian-sk-install
    lrwxrwxrwx. 1 root root         20 May 14  2018 scrollkeeper-preinstall -> rarian-sk-preinstall
    lrwxrwxrwx. 1 root root         17 May 14  2018 scrollkeeper-rebuilddb -> rarian-sk-rebuild
    lrwxrwxrwx. 1 root root         17 May 14  2018 scrollkeeper-uninstall -> rarian-sk-install
    lrwxrwxrwx. 1 root root         16 May 14  2018 scrollkeeper-update -> rarian-sk-update
    -rwxr-xr-x. 1 root root      29000 Nov 10  2010 sdiff
    -rwxr-xr-x. 1 root root      81048 Nov 10  2010 sdptool
    -rwxr-xr-x. 1 root root     819768 Aug 22  2010 seahorse
    -rwxr-xr-x. 1 root root     668224 Aug 22  2010 seahorse-daemon
    -rwxr-xr-x. 1 root root      18832 Feb 21  2013 secon
    -rwxr-xr-x. 1 root root     173496 Nov 10  2010 sedismod
    -rwxr-xr-x. 1 root root     145400 Nov 10  2010 sedispol
    -rwxr-xr-x. 1 root root     195536 Feb 21  2013 semodule_deps
    -rwxr-xr-x. 1 root root      10584 Feb 21  2013 semodule_expand
    -rwxr-xr-x. 1 root root      10512 Feb 21  2013 semodule_link
    -rwxr-xr-x. 1 root root      14944 Feb 21  2013 semodule_package
    -rwxr-xr-x. 1 root root      13576 Aug 16  2010 sendiso
    -rwxr-xr-x. 1 root root        238 Mar 27  2018 sentry
    -rwxr-xr-x. 1 root root      43944 Jun 22  2012 seq
    lrwxrwxrwx. 1 root root         27 Jul  5  2018 serialver -> /etc/alternatives/serialver
    lrwxrwxrwx. 1 root root         28 Jul  5  2018 servertool -> /etc/alternatives/servertool
    -rwxr-xr-x. 1 root root      14720 Feb 23  2013 sessreg
    -rwxr-xr-x. 1 root root      13920 Feb 21  2013 setarch
    -rwxr-xr-x. 1 root root      37016 Dec  7  2011 setfacl
    -rwxr-xr-x. 1 root root      18448 Sep 23  2011 setfattr
    -rwxr-xr-x. 1 root root      10472 Nov 11  2010 setkeycodes
    -rwxr-xr-x. 1 root root      12272 Nov 11  2010 setleds
    -rwxr-xr-x. 1 root root       9976 Nov 11  2010 setmetamode
    -rwxr-xr-x. 1 root root       8800 Feb 21  2013 setsid
    -rwxr-xr-x. 1 root root      25704 Feb 21  2013 setterm
    lrwxrwxrwx. 1 root root         13 May 14  2018 setup -> consolehelper
    -rwxr-xr-x. 1 root root       1539 Feb 22  2013 setup-nsssysinit.sh
    -rwxr-xr-x. 1 root root      23880 Feb 23  2013 setxkbmap
    -rwxr-xr-x. 1 root root      96328 Feb 21  2013 sftp
    lrwxrwxrwx. 1 root root          6 May 14  2018 sg -> newgrp
    -rwxr-xr-x. 1 root root        265 Nov 17  2000 sgmlwhich
    -rwxr-xr-x. 1 root root      39920 Jun 22  2012 sha1sum
    -rwxr-xr-x. 1 root root      45776 Jun 22  2012 sha224sum
    -rwxr-xr-x. 1 root root      45776 Jun 22  2012 sha256sum
    -rwxr-xr-x. 1 root root      51112 Jun 22  2012 sha384sum
    -rwxr-xr-x. 1 root root      51112 Jun 22  2012 sha512sum
    -rwxr-xr-x. 1 root root      10353 Jun 22  2012 show-changed-rco
    -rwxr-xr-x. 1 root root       2567 Aug 22  2010 showchar
    -rwxr-xr-x. 1 root root      17672 Nov 11  2010 showconsolefont
    -rwxr-xr-x. 1 root root      16570 Jun 22  2012 show-installed
    -rwxr-xr-x. 1 root root      14112 Nov 11  2010 showkey
    -rwxr-xr-x. 1 root root       9464 Feb 23  2013 showrgb
    -rwxr-xr-x. 1 root root      51432 Jun 22  2012 shred
    -rwxr-xr-x. 1 root root      38944 Jun 22  2012 shuf
    -rwxr-xr-x. 1 root root     171768 Feb 22  2013 signtool
    -rwxr-xr-x. 1 root root      91664 Feb 22  2013 signver
    -rwxr-xr-x. 1 root root      33728 Feb 21  2013 size
    -rwxr-xr-x. 2 root root      18752 Nov 15  2012 skill
    -rwxr-xr-x. 1 root root      17568 Nov 15  2012 slabtop
    -rwxr-xr-x. 1 root root       2034 Nov 10  2010 sliceprint
    lrwxrwxrwx. 1 root root          5 May 14  2018 slogin -> ./ssh
    -rwxr-xr-x. 1 root root    1635136 Feb 21  2013 smbcontrol
    -rwxr-xr-x. 1 root root    6221904 Feb 21  2013 smbcquotas
    -rwxr-xr-x. 1 root root    6246408 Feb 21  2013 smbpasswd
    -rwxr-xr-x. 1 root root      32512 Nov 11  2010 smp_conf_general
    -rwxr-xr-x. 1 root root      32608 Nov 11  2010 smp_conf_route_info
    -rwxr-xr-x. 1 root root      45368 Nov 11  2010 smp_discover
    -rwxr-xr-x. 1 root root      48832 Nov 11  2010 smp_discover_list
    -rwxr-xr-x. 1 root root      33936 Nov 11  2010 smp_phy_control
    -rwxr-xr-x. 1 root root      32856 Nov 11  2010 smp_phy_test
    -rwxr-xr-x. 1 root root      32920 Nov 11  2010 smp_read_gpio
    -rwxr-xr-x. 1 root root      34144 Nov 11  2010 smp_rep_exp_route_tbl
    -rwxr-xr-x. 1 root root      35392 Nov 11  2010 smp_rep_general
    -rwxr-xr-x. 1 root root      32416 Nov 11  2010 smp_rep_manufacturer
    -rwxr-xr-x. 1 root root      32416 Nov 11  2010 smp_rep_phy_err_log
    -rwxr-xr-x. 1 root root      32896 Nov 11  2010 smp_rep_phy_sata
    -rwxr-xr-x. 1 root root      33728 Nov 11  2010 smp_rep_route_info
    -rwxr-xr-x. 1 root root      33816 Nov 11  2010 smp_write_gpio
    -rwxr-xr-x. 1 root root      10672 Sep 23  2011 sndfile-cmp
    -rwxr-xr-x. 1 root root      19280 Sep 23  2011 sndfile-convert
    -rwxr-xr-x. 1 root root      14536 Sep 23  2011 sndfile-info
    -rwxr-xr-x. 1 root root      12920 Sep 23  2011 sndfile-metadata-get
    -rwxr-xr-x. 1 root root      18608 Sep 23  2011 sndfile-metadata-set
    -rwxr-xr-x. 1 root root      18208 Sep 23  2011 sndfile-play
    -rwxr-xr-x. 1 root root      20008 Sep 23  2011 sndfile-regtest
    -rwxr-xr-x. 1 root root      14448 Aug 19  2010 sndfile-resample
    -rwxr-xr-x. 2 root root      18752 Nov 15  2012 snice
    -rwxr-xr-x. 1 root root      26137 Feb 21  2013 snmpconf
    -rwxr-xr-x. 1 root root      26192 Nov 11  2010 soelim
    -rwxr-xr-x. 1 root root        247 Mar 27  2018 solrctl
    -rwxr-xr-x. 1 root root     210576 Nov 11  2010 sound-juicer
    -rwxr-xr-x. 1 root root        140 Mar 27  2018 spark-shell
    -rwxr-xr-x. 1 root root        141 Mar 27  2018 spark-submit
    -rwxr-xr-x. 1 root root      31296 Feb 21  2013 speaker-test
    -rwxr-xr-x. 1 root root      48336 Feb 21  2013 spice-vdagent
    -rwxr-xr-x. 1 root root      17452 Mar 22  2017 splain
    -rwxr-xr-x. 1 root root      55360 Jun 22  2012 split
    -rwxr-xr-x. 1 root root      26832 Feb 21  2013 sprof
    -rwxr-xr-x. 1 root root      59552 Aug 17  2010 sqlite3
    -rwxr-xr-x. 1 root root        486 Mar 27  2018 sqoop
    -rwxr-xr-x. 1 root root        494 Mar 27  2018 sqoop-codegen
    -rwxr-xr-x. 1 root root        504 Mar 27  2018 sqoop-create-hive-table
    -rwxr-xr-x. 1 root root        491 Mar 27  2018 sqoop-eval
    -rwxr-xr-x. 1 root root        493 Mar 27  2018 sqoop-export
    -rwxr-xr-x. 1 root root        491 Mar 27  2018 sqoop-help
    -rwxr-xr-x. 1 root root        493 Mar 27  2018 sqoop-import
    -rwxr-xr-x. 1 root root        504 Mar 27  2018 sqoop-import-all-tables
    -rwxr-xr-x. 1 root root        490 Mar 27  2018 sqoop-job
    -rwxr-xr-x. 1 root root        501 Mar 27  2018 sqoop-list-databases
    -rwxr-xr-x. 1 root root        498 Mar 27  2018 sqoop-list-tables
    -rwxr-xr-x. 1 root root        492 Mar 27  2018 sqoop-merge
    -rwxr-xr-x. 1 root root        496 Mar 27  2018 sqoop-metastore
    -rwxr-xr-x. 1 root root        494 Mar 27  2018 sqoop-version
    -rwxr-xr-x. 1 root root     376920 Feb 21  2013 ssh
    -rwxr-xr-x. 1 root root     130288 Feb 21  2013 ssh-add
    -rwxr-sr-x. 1 root nobody   112704 Feb 21  2013 ssh-agent
    -rwxr-xr-x. 1 root root       1389 Feb 21  2013 ssh-copy-id
    -rwxr-xr-x. 1 root root     154864 Feb 21  2013 ssh-keygen
    -rwxr-xr-x. 1 root root     216864 Feb 21  2013 ssh-keyscan
    -rwxr-xr-x. 1 root root      44952 Feb 22  2013 ssltap
    -rwxr-xr-x. 1 root root      10264 Feb 21  2013 stap-merge
    -rwxr-xr-x. 1 root root        912 Feb 21  2013 stap-report
    ---s--x---. 1 root stapusr  162584 Feb 21  2013 staprun
    -rwxr-xr-x. 1 root root      18480 Feb 21  2013 stapsh
    -rwxr-xr-x. 1 root root       1184 Jul 11  2012 start-pulseaudio-x11
    -rwxr-xr-x. 1 root root       4423 Aug 16  2010 startx
    -rwxr-xr-x. 1 root root      50400 Jun 22  2012 stat
    -rwxr-xr-x. 1 root root      97840 Nov 10  2010 states
    -rwxr-xr-x. 1 root root      63464 Jun 22  2012 stdbuf
    -rwxr-xr-x. 1 root root     309088 Feb 21  2013 strace
    -rwxr-xr-x. 1 root root      32464 Feb 21  2013 strings
    -rwxr-xr-x. 1 root root     219064 Feb 21  2013 strip
    ---s--x--x. 1 root root     123832 Feb 21  2013 sudo
    lrwxrwxrwx. 1 root root          4 May 14  2018 sudoedit -> sudo
    ---x--x--x. 1 root root      59744 Feb 21  2013 sudoreplay
    -rwxr-xr-x. 1 root root      34632 Jun 22  2012 sum
    -rwxr-xr-x. 1 root root      23536 Feb 23  2013 synclient
    -rwxr-xr-x. 1 root root      19096 Feb 23  2013 syndaemon
    lrwxrwxrwx. 1 root root         13 May 14  2018 system-config-authentication -> consolehelper
    lrwxrwxrwx. 1 root root         13 May 14  2018 system-config-date -> consolehelper
    -rwxr-xr-x. 1 root root       1217 Sep 23  2011 system-config-firewall
    -rwxr-xr-x. 1 root root       1155 Sep 23  2011 system-config-firewall-tui
    lrwxrwxrwx. 1 root root         13 May 14  2018 system-config-keyboard -> consolehelper
    lrwxrwxrwx. 1 root root         13 May 14  2018 system-config-network -> consolehelper
    lrwxrwxrwx. 1 root root         13 May 14  2018 system-config-network-cmd -> consolehelper
    -rwxr-xr-x. 1 root root         95 Apr  3  2012 system-config-printer
    -rwxr-xr-x. 1 root root         80 Apr  3  2012 system-config-printer-applet
    lrwxrwxrwx. 1 root root         13 May 14  2018 system-config-users -> consolehelper
    -rwxr-xr-x. 1 root root      17792 Nov 11  2010 system-setup-keyboard
    -rwxr-xr-x. 1 root root      14480 Aug 18  2010 tabs
    -rwxr-xr-x. 1 root root      96256 Jun 22  2012 tac
    -rwxr-xr-x. 1 root root      59696 Jun 22  2012 tail
    -rwxr-xr-x. 1 root root      11936 Feb 21  2013 tailf
    -rwxr-xr-x. 1 root root     105704 Nov 11  2010 tbl
    -rwxr-xr-x. 1 root root      27752 Jun 22  2012 tee
    -rwxr-xr-x. 1 root root      33808 Jun 22  2012 test
    -rwxr-xr-x. 1 root root      14360 Aug 16  2010 testlibraw
    -rwxr-xr-x. 1 root root    1614264 Feb 21  2013 testparm
    -rwxr-xr-x. 1 root root       6843 Aug 22  2010 test_ppa
    -rwxr-xr-x. 1 root root      23280 Nov 11  2010 test-speech
    -rwxr-xr-x. 1 root root       6465 Nov 10  2010 text2wave
    -rwxr-xr-x. 1 root root      30888 Nov 11  2010 tfmtodit
    -rwxr-xr-x. 1 root root       2295 Aug 16  2010 tgz
    -rwxr-xr-x. 1 root root      19784 Dec 18  2012 thumbnail
    -rwxr-xr-x. 1 root root      53784 Aug 18  2010 tic
    -rwxr-xr-x. 1 root root      16304 Dec 18  2012 tiff2bw
    -rwxr-xr-x. 1 root root      69064 Dec 18  2012 tiff2pdf
    -rwxr-xr-x. 1 root root      46056 Dec 18  2012 tiff2ps
    -rwxr-xr-x. 1 root root      15840 Dec 18  2012 tiff2rgba
    -rwxr-xr-x. 1 root root      19088 Dec 18  2012 tiffcmp
    -rwxr-xr-x. 1 root root      36000 Dec 18  2012 tiffcp
    -rwxr-xr-x. 1 root root     103296 Dec 18  2012 tiffcrop
    -rwxr-xr-x. 1 root root      14712 Dec 18  2012 tiffdither
    -rwxr-xr-x. 1 root root      20944 Dec 18  2012 tiffdump
    -rwxr-xr-x. 1 root root      18384 Dec 18  2012 tiffinfo
    -rwxr-xr-x. 1 root root      19280 Dec 18  2012 tiffmedian
    -rwxr-xr-x. 1 root root      13072 Dec 18  2012 tiffset
    -rwxr-xr-x. 1 root root      15208 Dec 18  2012 tiffsplit
    -rwxr-xr-x. 1 root root      17944 Aug 18  2010 time
    -rwxr-xr-x. 1 root root      50176 Jun 22  2012 timeout
    -rwxr-xr-x. 1 root root      11808 Nov 15  2012 tload
    lrwxrwxrwx. 1 root root         23 May 14  2018 tmpwatch -> ../../usr/sbin/tmpwatch
    lrwxrwxrwx. 1 root root         27 Jul  5  2018 tnameserv -> /etc/alternatives/tnameserv
    -rwxr-xr-x. 1 root root     228568 Nov 10  2010 toc2cddb
    -rwxr-xr-x. 1 root root     229096 Nov 10  2010 toc2cue
    -rwxr-xr-x. 1 root root      15496 Aug 18  2010 toe
    -rwxr-xr-x. 1 root root      68392 Nov 15  2012 top
    -rwxr-xr-x. 1 root root     522584 Nov 11  2010 totem
    -rwxr-xr-x. 1 root root     175176 Nov 11  2010 totem-audio-preview
    -rwxr-xr-x. 1 root root     175104 Nov 11  2010 totem-video-indexer
    -rwxr-xr-x. 1 root root     187008 Nov 11  2010 totem-video-thumbnailer
    -rwxr-xr-x. 1 root root      15272 Aug 18  2010 tput
    lrwxrwxrwx. 1 root root         35 Jun  7  2018 tpvmlp -> /usr/lib/vmware-tools/bin/appLoader
    lrwxrwxrwx. 1 root root         35 Jun  7  2018 tpvmlpd -> /usr/lib/vmware-tools/bin/appLoader
    -rwxr-xr-x. 1 root root      41424 Jun 22  2012 tr
    -rwxr-xr-x. 1 root root     363616 Nov 11  2010 troff
    -rwxr-xr-x. 1 root root      51160 Jun 22  2012 truncate
    -rwxr-xr-x. 1 root root      22464 Aug 18  2010 tset
    -rwxr-xr-x. 1 root root      35864 Jun 22  2012 tsort
    -rwxr-xr-x. 1 root root      25464 Jun 22  2012 tty
    -rwxr-xr-x. 1 root root       7131 Feb 21  2013 tzselect
    -rwxr-xr-x. 1 root root      21856 Dec  7  2011 ucs2any
    -rwxr-xr-x. 1 root root      48648 Dec  7  2011 udisks
    -rwxr-xr-x. 1 root root      17528 Feb 21  2013 ul
    lrwxrwxrwx. 1 root root         20 May 14  2018 ulockmgr_server -> /bin/ulockmgr_server
    -rwxr-xr-x. 1 root root      31752 Jun 22  2012 unexpand
    -rwxr-xr-x. 1 root root      39008 Jun 22  2012 uniq
    -rwxr-xr-x. 1 root root       4206 Sep 11  2012 unix-lpr.sh
    lrwxrwxrwx. 1 root root          2 May 14  2018 unlzma -> xz
    lrwxrwxrwx. 1 root root         27 Jul  5  2018 unpack200 -> /etc/alternatives/unpack200
    -rwxr-xr-x. 1 root root      61592 Feb 21  2013 unprotoize
    -rwxr-xr-x. 1 root root      10208 Feb 21  2013 unshare
    lrwxrwxrwx. 1 root root          2 May 14  2018 unxz -> xz
    -rwxr-xr-x. 2 root root     164128 Nov 11  2010 unzip
    -rwxr-xr-x. 1 root root      76784 Nov 11  2010 unzipsfx
    -rwxr-xr-x. 1 root root      40720 Oct 10  2012 updatedb
    -rwxr-xr-x. 1 root root      17584 Aug 25  2010 update-desktop-database
    -rwxr-xr-x. 1 root root       1275 Feb 21  2013 update-gdk-pixbuf-loaders
    -rwxr-xr-x. 1 root root       1260 Feb 21  2013 update-gtk-immodules
    -rwxr-xr-x. 1 root root      50360 Nov 11  2010 update-mime-database
    -rwxr-xr-x. 1 root root       8360 Nov 15  2012 uptime
    -rwxr-xr-x. 1 root root      12437 Jul 19  2011 urlgrabber
    -rwxr-xr-x. 1 root root       4202 Mar 17  2010 usb-devices
    -rwxr-xr-x. 1 root root      23952 Dec  7  2011 usbhid-dump
    lrwxrwxrwx. 1 root root          9 May 14  2018 userformat -> usermount
    -rwxr-xr-x. 1 root root      45720 Aug 22  2010 userinfo
    -rwxr-xr-x. 1 root root      29896 Aug 22  2010 usermount
    -rwxr-xr-x. 1 root root      39176 Aug 22  2010 userpasswd
    -rwxr-xr-x. 1 root root      27712 Jun 22  2012 users
    -rwxr-xr-x. 1 root root      14192 Jul 19  2011 utmpdump
    -rwxr-xr-x. 1 root root       9360 Feb 21  2013 uuidgen
    -rwxr-xr-x. 1 root root       2220 Aug 16  2010 uz
    -rwxr-xr-x. 1 root root     117024 Jun 22  2012 vdir
    -rwxr-xr-x. 1 root root       9096 Dec  7  2011 verify_blkparse
    -rwxr-xr-x. 1 root root       9415 Jun 22  2012 verifytree
    -rwxr-xr-x. 1 root root    1967072 Apr  5  2012 vim
    lrwxrwxrwx. 1 root root          3 May 14  2018 vimdiff -> vim
    -rwxr-xr-x. 1 root root       2084 Apr  5  2012 vimtutor
    -rwxr-xr-x. 1 root root      16520 Jan 21  2013 vino-passwd
    -rwxr-xr-x. 1 root root      75688 Jan 21  2013 vino-preferences
    lrwxrwxrwx. 1 root root         37 Jun  7  2018 vmhgfs-fuse -> /usr/lib/vmware-tools/bin64/appLoader
    -rwxr-xr-x. 1 root root       8328 Feb 23  2013 vmmouse_detect
    -rwxr-xr-x. 1 root root      24880 Nov 15  2012 vmstat
    -rwxr-xr-x. 1 root root       9202 Jun  7  2018 vm-support
    -rwxr-xr-x. 1 root root     421976 Jun  7  2018 vmware-config-tools.pl
    lrwxrwxrwx. 1 root root         37 Jun  7  2018 vmware-guestproxycerttool -> /usr/lib/vmware-tools/bin64/appLoader
    lrwxrwxrwx. 1 root root         37 Jun  7  2018 vmware-hgfsclient -> /usr/lib/vmware-tools/bin64/appLoader
    lrwxrwxrwx. 1 root root         37 Jun  7  2018 vmware-toolbox-cmd -> /usr/lib/vmware-tools/bin64/appLoader
    -rwxr-xr-x. 1 root root     221099 Jun  7  2018 vmware-uninstall-tools.pl
    lrwxrwxrwx. 1 root root         52 Jun  7  2018 vmware-user -> /usr/lib/vmware-tools/bin64/vmware-user-suid-wrapper
    lrwxrwxrwx. 1 root root         43 Jun  7  2018 vmware-xferlogs -> /usr/lib/vmware-tools/bin64/vmware-xferlogs
    -rwxr-xr-x. 1 root root       8912 Nov 10  2010 volname
    -rwxr-xr-x. 1 root root      31776 Aug 17  2010 vorbiscomment
    -rwxr-xr-x. 1 root root      15096 Nov 15  2012 w
    -r-xr-sr-x. 1 root tty       15224 Jul 19  2011 wall
    -rwxr-xr-x. 1 root root      16792 Nov 15  2012 watch
    -rwxr-xr-x. 1 root root      14176 Nov 11  2010 watchgnupg
    -rwxr-xr-x. 1 root root      46328 Aug 18  2010 wavpack
    -rwxr-xr-x. 1 root root    1729376 Feb 21  2013 wbinfo
    -rwxr-xr-x. 1 root root      36408 Jun 22  2012 wc
    -rwxr-xr-x. 1 root root      68640 Feb 21  2013 wdaemon
    -rwxr-xr-x. 1 root root        284 Sep 11  2012 wftopfa
    -rwxr-xr-x. 1 root root     362456 Oct 10  2012 wget
    -rwxr-xr-x. 1 root root       1784 Feb 21  2013 whatis
    -rwxr-xr-x. 1 root root      14616 Feb 21  2013 whereis
    -rwxr-xr-x. 1 root root      25528 Sep 23  2011 which
    -rwxr-xr-x. 1 root root      30304 Sep 23  2011 whiptail
    -rwxr-xr-x. 1 root root      48952 Jun 22  2012 who
    -rwxr-xr-x. 1 root root      26280 Jun 22  2012 whoami
    -rwxr-xr-x. 1 root root      18368 Jul 18  2011 wnck-urgency-monitor
    -rwxr-xr-x. 1 root root     410728 Nov 12  2012 wodim
    -rwxr-sr-x. 1 root tty       12016 Feb 21  2013 write
    -rwxr-xr-x. 1 root root      13200 Feb 21  2013 wrjpgcom
    lrwxrwxrwx. 1 root root         23 Jul  5  2018 wsgen -> /etc/alternatives/wsgen
    lrwxrwxrwx. 1 root root         26 Jul  5  2018 wsimport -> /etc/alternatives/wsimport
    -rwxr-xr-x. 1 root root      32720 Aug 18  2010 wvgain
    -rwxr-xr-x. 1 root root      44128 Aug 18  2010 wvunpack
    lrwxrwxrwx. 1 root root          4 May 14  2018 X -> Xorg
    lrwxrwxrwx. 1 root root          7 May 14  2018 x86_64 -> setarch
    -rwxr-xr-x. 2 root root     268160 Feb 21  2013 x86_64-redhat-linux-gcc
    -rwxr-xr-x. 1 root root      46648 Nov 10  2010 xargs
    -rwxr-xr-x. 1 root root      43176 Aug 18  2010 xauth
    -rwxr-xr-x. 1 root root      15050 Sep 23  2011 xdg-desktop-icon
    -rwxr-xr-x. 1 root root      37949 Sep 23  2011 xdg-desktop-menu
    -rwxr-xr-x. 1 root root      19059 Sep 23  2011 xdg-email
    -rwxr-xr-x. 1 root root      24459 Sep 23  2011 xdg-icon-resource
    -rwxr-xr-x. 1 root root      29569 Sep 23  2011 xdg-mime
    -rwxr-xr-x. 1 root root      11201 Sep 23  2011 xdg-open
    -rwxr-xr-x. 1 root root      21062 Sep 23  2011 xdg-screensaver
    -rwxr-xr-x. 1 root root      25055 Sep 23  2011 xdg-settings
    -rwxr-xr-x. 1 root root        234 Nov 11  2010 xdg-user-dir
    -rwxr-xr-x. 1 root root      26936 Aug 24  2010 xdg-user-dirs-gtk-update
    -rwxr-xr-x. 1 root root      21768 Nov 11  2010 xdg-user-dirs-update
    -rwxr-xr-x. 1 root root      38112 Feb 23  2013 xdpyinfo
    -rwxr-xr-x. 1 root root      12800 Feb 21  2013 xdriinfo
    -rwxr-xr-x. 1 root root      25976 Feb 23  2013 xev
    -rwxr-xr-x. 1 root root      13072 Feb 23  2013 xgamma
    -rwxr-xr-x. 1 root root     224960 Jun  2  2014 xgettext
    -rwxr-xr-x. 1 root root      17736 Feb 23  2013 xhost
    -rwxr-xr-x. 1 root root      22576 Aug 16  2010 xinit
    -rwxr-xr-x. 1 root root      51072 Feb 23  2013 xinput
    lrwxrwxrwx. 1 root root         21 Jul  5  2018 xjc -> /etc/alternatives/xjc
    -rwxr-xr-x. 1 root root     183296 Feb 23  2013 xkbcomp
    -rwxr-xr-x. 1 root root      15368 Feb 23  2013 xkill
    -rwxr-xr-x. 1 root root      12720 Feb 23  2013 xlsatoms
    -rwxr-xr-x. 1 root root      16576 Feb 23  2013 xlsclients
    -rwxr-xr-x. 1 root root      21208 Feb 23  2013 xlsfonts
    -rwxr-xr-x. 1 root root      19552 Nov 29  2012 xmlcatalog
    -rwxr-xr-x. 1 root root      64864 Nov 29  2012 xmllint
    -rwxr-xr-x. 1 root root      26080 Jun 13  2012 xmlwf
    -rwxr-xr-x. 1 root root      35744 Feb 23  2013 xmodmap
    -rwsr-xr-x. 1 root root    2261800 Feb 22  2013 Xorg
    -rwxr-xr-x. 1 root root      40544 Feb 23  2013 xprop
    -rwxr-xr-x. 1 root root      53336 Feb 23  2013 xrandr
    -rwxr-xr-x. 1 root root      28368 Feb 23  2013 xrdb
    -rwxr-xr-x. 1 root root      13336 Feb 23  2013 xrefresh
    -rwxr-xr-x. 1 root root      34064 Feb 23  2013 xset
    -rwxr-xr-x. 1 root root      10784 Feb 23  2013 xsetmode
    -rwxr-xr-x. 1 root root      11544 Feb 23  2013 xsetpointer
    -rwxr-xr-x. 1 root root      19776 Feb 23  2013 xsetroot
    -rwxr-xr-x. 1 root root      46592 Feb 23  2013 xsetwacom
    -rwxr-xr-x. 1 root root      29568 Sep 13  2012 xsltproc
    -rwxr-xr-x. 1 root root      16600 Feb 23  2013 xstdcmap
    -rwxr-xr-x. 1 root root       4093 Mar 22  2017 xsubpp
    -rwxr-xr-x. 1 root root       1573 Jan  8  2013 xulrunner
    -rwxr-xr-x. 1 root root      12752 Aug 22  2010 xvattr
    -rwxr-xr-x. 1 root root      15000 Feb 23  2013 xvinfo
    -rwxr-xr-x. 1 root root      44176 Feb 23  2013 xwininfo
    -rwxr-xr-x. 1 root root      17592 Apr  5  2012 xxd
    -rwxr-xr-x. 1 root root      51840 Aug 22  2010 xz
    lrwxrwxrwx. 1 root root          2 May 14  2018 xzcat -> xz
    lrwxrwxrwx. 1 root root          6 May 14  2018 xzcmp -> xzdiff
    -rwxr-xr-x. 1 root root      15464 Aug 22  2010 xzdec
    -rwxr-xr-x. 1 root root       5220 Aug 22  2010 xzdiff
    lrwxrwxrwx. 1 root root          6 May 14  2018 xzegrep -> xzgrep
    lrwxrwxrwx. 1 root root          6 May 14  2018 xzfgrep -> xzgrep
    -rwxr-xr-x. 1 root root       5207 Aug 22  2010 xzgrep
    -rwxr-xr-x. 1 root root       1806 Aug 22  2010 xzless
    -rwxr-xr-x. 1 root root       2167 Aug 22  2010 xzmore
    -rwxr-xr-x. 1 root root        245 May 24  2018 yarn
    -rwxr-xr-x. 1 root root     329320 Feb 24  2012 yelp
    -rwxr-xr-x. 1 root root      25664 Jun 22  2012 yes
    -rwxr-xr-x. 1 root root        801 Feb 22  2013 yum
    -rwxr-xr-x. 1 root root       9056 Jun 22  2012 yum-builddep
    -rwxr-xr-x. 1 root root       8007 Jun 22  2012 yum-config-manager
    -rwxr-xr-x. 1 root root       7603 Jun 22  2012 yum-debug-dump
    -rwxr-xr-x. 1 root root       7931 Jun 22  2012 yum-debug-restore
    -rwxr-xr-x. 1 root root      13580 Jun 22  2012 yumdownloader
    -rwxr-xr-x. 1 root root      11030 Jun 22  2012 yum-groups-manager
    -rwxr-xr-x. 1 root root         67 Nov 11  2010 zcmp
    -rwxr-xr-x. 1 root root       4441 Nov 11  2010 zdiff
    -rwxr-xr-x. 1 root root         62 Nov 11  2010 zegrep
    -rwxr-xr-x. 1 root root      92296 Aug 16  2010 zenity
    -rwxr-xr-x. 1 root root         62 Nov 11  2010 zfgrep
    -rwxr-xr-x. 1 root root       2022 Nov 11  2010 zforce
    -rwxr-xr-x. 1 root root       4975 Nov 11  2010 zgrep
    -rwxr-xr-x. 1 root root     216008 Nov 11  2010 zip
    -rwxr-xr-x. 1 root root     110376 Nov 11  2010 zipcloak
    -rwxr-xr-x. 1 root root       2953 Oct 10  2008 zipgrep
    -rwxr-xr-x. 2 root root     164128 Nov 11  2010 zipinfo
    -rwxr-xr-x. 1 root root     101856 Nov 11  2010 zipnote
    -rwxr-xr-x. 1 root root     105280 Nov 11  2010 zipsplit
    -rwxr-xr-x. 1 root root       1731 Nov 11  2010 zless
    -rwxr-xr-x. 1 root root       2605 Nov 11  2010 zmore
    -rwxr-xr-x. 1 root root       5246 Nov 11  2010 znew
    -rwxr-xr-x. 1 root root        413 Mar 27  2018 zookeeper-client
    -rwxr-xr-x. 1 root root        739 Mar 27  2018 zookeeper-server
    -rwxr-xr-x. 1 root root        740 Mar 27  2018 zookeeper-server-cleanup
    -rwxr-xr-x. 1 root root        750 Mar 27  2018 zookeeper-server-initialize
    lrwxrwxrwx. 1 root root          6 May 14  2018 zsoelim -> soelim
    ll /usr/bin部分内容
    yang@cMaster:~]#ll /bin
    total 7800
    -rwxr-xr-x. 1 root root    123 Feb 21  2013 alsaunmute
    -rwxr-xr-x. 1 root root  27776 Jun 22  2012 arch
    lrwxrwxrwx. 1 root root      4 May 14  2018 awk -> gawk
    -rwxr-xr-x. 1 root root  26264 Jun 22  2012 basename
    -rwxr-xr-x. 1 root root 938768 Feb 21  2013 bash
    -rwxr-xr-x. 1 root root  48568 Jun 22  2012 cat
    -rwxr-xr-x. 1 root root  55472 Jun 22  2012 chgrp
    -rwxr-xr-x. 1 root root  52472 Jun 22  2012 chmod
    -rwxr-xr-x. 1 root root  57464 Jun 22  2012 chown
    -rwxr-xr-x. 1 root root 122736 Jun 22  2012 cp
    -rwxr-xr-x. 1 root root 135744 Oct 30  2012 cpio
    lrwxrwxrwx. 1 root root      4 May 14  2018 csh -> tcsh
    -rwxr-xr-x. 1 root root  45408 Jun 22  2012 cut
    -rwxr-xr-x. 1 root root 109672 Oct 17  2012 dash
    -rwxr-xr-x. 1 root root  59488 Jun 22  2012 date
    -rwxr-xr-x. 1 root root  12600 Sep 13  2012 dbus-cleanup-sockets
    -rwxr-xr-x. 1 root root 339080 Sep 13  2012 dbus-daemon
    -rwxr-xr-x. 1 root root  18560 Sep 13  2012 dbus-monitor
    -rwxr-xr-x. 1 root root  22456 Sep 13  2012 dbus-send
    -rwxr-xr-x. 1 root root  11008 Sep 13  2012 dbus-uuidgen
    -rwxr-xr-x. 1 root root  53944 Jun 22  2012 dd
    -rwxr-xr-x. 1 root root  77424 Jun 22  2012 df
    -rwxr-xr-x. 1 root root   9944 Feb 21  2013 dmesg
    lrwxrwxrwx. 1 root root      8 May 14  2018 dnsdomainname -> hostname
    lrwxrwxrwx. 1 root root      8 May 14  2018 domainname -> hostname
    -rwxr-xr-x. 1 root root  81120 Nov 11  2010 dumpkeys
    -rwxr-xr-x. 1 root root  28176 Jun 22  2012 echo
    -rwxr-xr-x. 2 root root  53400 Nov 10  2010 ed
    -rwxr-xr-x. 1 root root 106400 Mar  7  2012 egrep
    -rwxr-xr-x. 1 root root  26368 Jun 22  2012 env
    lrwxrwxrwx. 1 root root      2 May 14  2018 ex -> vi
    -rwxr-xr-x. 1 root root  25120 Jun 22  2012 false
    -rwxr-xr-x. 1 root root  71392 Mar  7  2012 fgrep
    -rwxr-xr-x. 1 root root 238952 Nov 10  2010 find
    -rwxr-xr-x. 1 root root  41896 Feb 21  2013 findmnt
    -rwsr-x---. 1 root fuse  32336 Dec  7  2011 fusermount
    -rwxr-xr-x. 1 root root 382456 Aug  7  2012 gawk
    -rwxr-xr-x. 1 root root  33488 Jun  2  2014 gettext
    -rwxr-xr-x. 1 root root 111360 Mar  7  2012 grep
    lrwxrwxrwx. 1 root root      3 May 14  2018 gtar -> tar
    -rwxr-xr-x. 1 root root     61 Nov 11  2010 gunzip
    -rwxr-xr-x. 1 root root  68616 Nov 11  2010 gzip
    -rwxr-xr-x. 1 root root  17848 May 10  2012 hostname
    -rwxr-xr-x. 1 root root  14920 Feb 22  2013 ipcalc
    lrwxrwxrwx. 1 root root     41 May 14  2018 iptables-xml -> /etc/alternatives/bin-iptables-xml.x86_64
    lrwxrwxrwx. 1 root root     20 May 14  2018 iptables-xml-1.4.7 -> /sbin/iptables-multi
    -rwxr-xr-x. 1 root root  11296 Nov 11  2010 kbd_mode
    -rwxr-xr-x. 1 root root  15224 Feb 21  2013 kill
    -rwxr-xr-x. 1 root root  26256 Jun 22  2012 link
    -rwxr-xr-x. 1 root root  49504 Jun 22  2012 ln
    -rwxr-xr-x. 1 root root 112208 Nov 11  2010 loadkeys
    -rwxr-xr-x. 1 root root  31592 Feb 21  2013 login
    -rwxr-xr-x. 1 root root 117024 Jun 22  2012 ls
    -rwxr-xr-x. 1 root root  59848 Feb 21  2013 lsblk
    lrwxrwxrwx. 1 root root      5 May 14  2018 mail -> mailx
    -rwxr-xr-x. 1 root root 391224 Aug 22  2010 mailx
    -rwxr-xr-x. 1 root root  49384 Jun 22  2012 mkdir
    -rwxr-xr-x. 1 root root  32496 Jun 22  2012 mknod
    -rwxr-xr-x. 1 root root  38048 Jun 22  2012 mktemp
    -rwxr-xr-x. 1 root root  41216 Feb 21  2013 more
    -rwsr-xr-x. 1 root root  77208 Feb 21  2013 mount
    -rwxr-xr-x. 1 root root   9848 Jul 19  2011 mountpoint
    -rwxr-xr-x. 1 root root 113328 Jun 22  2012 mv
    -rwxr-xr-x. 1 root root 178896 Nov 11  2010 nano
    -rwxr-xr-x. 1 root root 128192 May 10  2012 netstat
    -rwxr-xr-x. 1 root root  28784 Jun 22  2012 nice
    lrwxrwxrwx. 1 root root      8 May 14  2018 nisdomainname -> hostname
    -rwsr-xr-x. 1 root root  40760 Jul 18  2011 ping
    -rwsr-xr-x. 1 root root  36488 Jul 18  2011 ping6
    -rwxr-xr-x. 1 root root  36808 Feb 22  2013 plymouth
    -rwxr-xr-x. 1 root root  87088 Nov 15  2012 ps
    -rwxr-xr-x. 1 root root  31656 Jun 22  2012 pwd
    -rwxr-xr-x. 1 root root  11576 Feb 21  2013 raw
    -rwxr-xr-x. 1 root root  40056 Jun 22  2012 readlink
    -rwxr-xr-x. 2 root root  53400 Nov 10  2010 red
    -rwxr-xr-x. 1 root root    576 Apr 16  2008 redhat_lsb_init
    -rwxr-xr-x. 1 root root  57440 Jun 22  2012 rm
    -rwxr-xr-x. 1 root root  40480 Jun 22  2012 rmdir
    lrwxrwxrwx. 1 root root      4 May 14  2018 rnano -> nano
    -rwxr-xr-x. 1 root root  30600 Feb 21  2013 rpm
    lrwxrwxrwx. 1 root root      2 May 14  2018 rvi -> vi
    lrwxrwxrwx. 1 root root      2 May 14  2018 rview -> vi
    -rwxr-xr-x. 1 root root  72248 Jun 22  2012 sed
    -rwxr-xr-x. 1 root root  42384 Nov 11  2010 setfont
    -rwxr-xr-x. 1 root root  23672 Aug 22  2010 setserial
    lrwxrwxrwx. 1 root root      4 May 14  2018 sh -> bash
    -rwxr-xr-x. 1 root root  27848 Jun 22  2012 sleep
    -rwxr-xr-x. 1 root root  98968 Jun 22  2012 sort
    -rwxr-xr-x. 1 root root  65032 Jun 22  2012 stty
    -rwsr-xr-x. 1 root root  34904 Jun 22  2012 su
    -rwxr-xr-x. 1 root root  25432 Jun 22  2012 sync
    -rwxr-xr-x. 1 root root 395472 Feb 21  2013 tar
    -rwxr-xr-x. 1 root root  14880 Feb 21  2013 taskset
    -rwxr-xr-x. 1 root root 387328 Feb 21  2013 tcsh
    -rwxr-xr-x. 1 root root  52656 Jun 22  2012 touch
    -rwxr-xr-x. 1 root root  11392 Jul 18  2011 tracepath
    -rwxr-xr-x. 1 root root  12288 Jul 18  2011 tracepath6
    -rwxr-xr-x. 1 root root  57480 Nov 11  2010 traceroute
    lrwxrwxrwx. 1 root root     10 May 14  2018 traceroute6 -> traceroute
    -rwxr-xr-x. 1 root root  25120 Jun 22  2012 true
    -rwxr-xr-x. 1 root root  15008 Dec  7  2011 ulockmgr_server
    -rwsr-xr-x. 1 root root  53472 Feb 21  2013 umount
    -rwxr-xr-x. 1 root root  27776 Jun 22  2012 uname
    -rwxr-xr-x. 1 root root   2555 Nov 11  2010 unicode_start
    -rwxr-xr-x. 1 root root    363 Nov 11  2010 unicode_stop
    -rwxr-xr-x. 1 root root  25760 Jun 22  2012 unlink
    -rwxr-xr-x. 1 root root  10256 Feb 22  2013 usleep
    -rwxr-xr-x. 1 root root 770248 Apr  5  2012 vi
    lrwxrwxrwx. 1 root root      2 May 14  2018 view -> vi
    lrwxrwxrwx. 1 root root      8 May 14  2018 ypdomainname -> hostname
    -rwxr-xr-x. 1 root root     62 Nov 11  2010 zcat
    ll /bin
    yang@cMaster:~]#ll /usr/local/sbin
    total 0
    ll /usr/local/sbin
    yang@cMaster:~]#ll /usr/sbin
    total 28472
    -rwxr-xr-x. 1 root root       28488 Feb 22  2013 abrtd
    -rwxr-xr-x. 1 root root       24224 Feb 22  2013 abrt-dbus
    -rwxr-xr-x. 1 root root        2832 Feb 22  2013 abrt-install-ccpp-hook
    -rwxr-xr-x. 1 root root       19208 Feb 22  2013 abrt-server
    lrwxrwxrwx. 1 root root          10 May 14  2018 accept -> cupsaccept
    lrwxrwxrwx. 1 root root          17 May 14  2018 accton -> ../../sbin/accton
    -rwxr-x---. 1 root root       27312 Aug 18  2010 acpid
    -rwxr-xr-x. 1 root root        3126 Sep 21  2009 addgnupghome
    lrwxrwxrwx. 1 root root           7 May 14  2018 adduser -> useradd
    lrwxrwxrwx. 1 root root          18 May 14  2018 alsactl -> ../../sbin/alsactl
    -rwxr-xr-x. 1 root root       18199 Sep 12  2012 alsa-delay
    -rwxr-xr-x. 1 root root       27496 Jun 22  2012 alternatives
    -rwxr-xr-x. 1 root root       38968 Jul 18  2011 anacron
    -rwxr-xr-x. 1 root root        3916 Feb 22  2013 apachectl
    -rwxr-xr-x. 1 root root        2264 Dec 18  2009 applygnupgdefaults
    -rwxr-xr-x. 1 root root       42704 Feb 21  2013 arpd
    lrwxrwxrwx. 1 root root          12 May 14  2018 arping -> /sbin/arping
    -rwxr-xr-x. 1 root root       23968 Jan 30  2012 atd
    -rwxr-xr-x. 1 root root          67 Jan 30  2012 atrun
    lrwxrwxrwx. 1 root root          35 May 14  2018 authconfig -> /usr/share/authconfig/authconfig.py
    lrwxrwxrwx. 1 root root          39 May 14  2018 authconfig-gtk -> /usr/share/authconfig/authconfig-gtk.py
    lrwxrwxrwx. 1 root root          39 May 14  2018 authconfig-tui -> /usr/share/authconfig/authconfig-tui.py
    -rwxr-xr-x. 1 root root       38688 Feb 21  2013 avahi-autoipd
    -rwxr-xr-x. 1 root root       13968 Jun 22  2012 avcstat
    -rwxr-xr-x. 1 root root      109472 Nov 10  2010 bccmd
    -rwxr-xr-x. 1 root root       18200 Dec  7  2011 biosdecode
    -rwxr-xr-x. 1 root root      500176 Nov 10  2010 bluetoothd
    -rwxr-xr-x. 1 root root       18984 Jun 22  2012 bonobo-activation-sysconf
    -rwxr-xr-x. 1 root root       37696 Feb 21  2013 brctl
    -rwx------. 1 root root      753736 Feb 21  2013 build-locale-archive
    -rwxr-xr-x. 1 root root         644 Feb 21  2013 cacertdir_rehash
    -rwxr-xr-x. 1 root root       16616 Dec  7  2011 capsh
    -rwxr-xr-x. 1 root root       27936 Aug 22  2010 chat
    -rwxr-xr-x. 1 root root       42616 Dec  7  2011 chpasswd
    -rwxr-xr-x. 1 root root       31776 Jun 22  2012 chroot
    -rwxr-xr-x. 1 root root       18936 Nov 10  2010 ck-log-system-restart
    -rwxr-xr-x. 1 root root       19232 Nov 10  2010 ck-log-system-start
    -rwxr-xr-x. 1 root root       18936 Nov 10  2010 ck-log-system-stop
    -rwxr-xr-x. 1 root root       15520 Jul 18  2011 clockdiff
    -rwxr-xr-x. 1 root root      155016 Nov 10  2010 console-kit-daemon
    -rwxr-xr-x. 1 root root       70056 Nov 20  2012 convertquota
    -rwxr-xr-x. 1 root root       22576 Feb 21  2013 cpuspeed
    -rwxr-xr-x. 1 root root        9008 Jun 24  2011 cracklib-check
    -rwxr-xr-x. 1 root root         218 Jun 24  2011 cracklib-format
    -rwxr-xr-x. 1 root root        9536 Jun 24  2011 cracklib-packer
    -rwxr-xr-x. 1 root root        8648 Jun 24  2011 cracklib-unpacker
    -rwxr-xr-x. 1 root root         990 Jun 24  2011 create-cracklib-dict
    -rwxr-xr-x. 1 root root       59832 Jul 18  2011 crond
    -rwxr-xr-x. 1 root root       10488 Nov 20  2012 cupsaccept
    -rwxr-xr-x. 1 root root       10544 Nov 20  2012 cupsaddsmb
    -rwxr-xr-x. 1 root root       10528 Nov 20  2012 cupsctl
    -rwxr-xr-x. 1 root root      435896 Nov 20  2012 cupsd
    lrwxrwxrwx. 1 root root          10 May 14  2018 cupsdisable -> cupsaccept
    lrwxrwxrwx. 1 root root          10 May 14  2018 cupsenable -> cupsaccept
    -rwxr-xr-x. 1 root root       28728 Nov 20  2012 cupsfilter
    -rwxr-xr-x. 1 root root       65912 Nov 11  2010 cups-genppd.5.2
    -rwxr-xr-x. 1 root root       35062 Nov 11  2010 cups-genppdupdate
    lrwxrwxrwx. 1 root root          10 May 14  2018 cupsreject -> cupsaccept
    -rwxr-xr-x. 1 root root       80856 Dec  7  2011 dmidecode
    -rwxr-xr-x. 1 root root      185888 Feb 21  2013 dnsmasq
    -rwxr-xr-x. 1 root root       14632 Jul 17  2012 dump-acct
    -rwxr-xr-x. 1 root root       14712 Jul 17  2012 dump-utmp
    -rwxr-xr-x. 1 root root       14456 Feb 21  2013 e2freefrag
    -rwxr-xr-x. 1 root root       78560 Nov 20  2012 edquota
    -rwxr-xr-x. 1 root root       50984 Jun 21  2012 efibootmgr
    -rwxr-xr-x. 1 root root       32112 Nov 10  2010 eject
    lrwxrwxrwx. 1 root root          18 May 14  2018 ethtool -> ../../sbin/ethtool
    -rwxr-xr-x. 1 root root       11416 Feb 21  2013 fdformat
    -rwxr-xr-x. 1 root root       13608 Feb 21  2013 filefrag
    -rwxr-xr-x. 1 root root        8538 Feb 21  2013 firstboot
    -rwxr-xr-x. 1 root root       29858 Sep 23  2011 foomatic-addpjloptions
    -rwxr-xr-x. 1 root root        1371 Sep 23  2011 foomatic-cleanupdrivers
    -rwxr-xr-x. 1 root root        4570 Sep 23  2011 foomatic-extract-text
    -rwxr-xr-x. 1 root root        1539 Sep 23  2011 foomatic-fix-xml
    -rwxr-xr-x. 1 root root        2140 Sep 23  2011 foomatic-getpjloptions
    -rwxr-xr-x. 1 root root        3247 Sep 23  2011 foomatic-kitload
    -rwxr-xr-x. 1 root root        4497 Sep 23  2011 foomatic-nonumericalids
    -rwxr-xr-x. 1 root root        9322 Sep 23  2011 foomatic-preferred-driver
    -rwxr-xr-x. 1 root root        5105 Sep 23  2011 foomatic-printermap-to-gutenprint-xml
    -rwxr-xr-x. 1 root root        2606 Sep 23  2011 foomatic-replaceoldprinterids
    -rwxr-xr-x. 1 root root         388 Feb 21  2013 gdm
    -rwxr-xr-x. 1 root root      170784 Feb 21  2013 gdm-binary
    -rwxr-xr-x. 1 root root          33 Feb 21  2013 genhomedircon
    -rwxr-xr-x. 1 root root       10264 Dec  7  2011 getcap
    -rwxr-xr-x. 1 root root        8728 Jun 22  2012 getenforce
    -rwxr-xr-x. 1 root root        9272 Dec  7  2011 getpcaps
    -rwxr-xr-x. 1 root root       10648 Jun 22  2012 getsebool
    -rwx------. 1 root root      686480 Feb 21  2013 glibc_post_upgrade.x86_64
    -rwxr-x---. 1 root root       54968 Dec  7  2011 groupadd
    -rwxr-x---. 1 root root       46512 Dec  7  2011 groupdel
    -rwxr-x---. 1 root root       50800 Dec  7  2011 groupmems
    -rwxr-x---. 1 root root       61360 Dec  7  2011 groupmod
    -rwxr-xr-x. 1 root root       50600 Dec  7  2011 grpck
    -rwxr-xr-x. 1 root root       42416 Dec  7  2011 grpconv
    -rwxr-xr-x. 1 root root       42416 Dec  7  2011 grpunconv
    -rwxr-xr-x. 1 root root      359064 Jul 19  2011 hald
    -rwxr-xr-x. 1 root root       33416 Nov 10  2010 hciattach
    -rwxr-xr-x. 1 root root      115032 Nov 10  2010 hciconfig
    -rwxr-xr-x. 1 root root       19984 Feb 22  2013 htcacheclean
    -rwxr-xr-x. 1 root root      354816 Feb 22  2013 httpd
    -rwxr-xr-x. 1 root root      368168 Feb 22  2013 httpd.event
    -rwxr-xr-x. 1 root root      367240 Feb 22  2013 httpd.worker
    -rwxr-xr-x. 1 root root       11192 Feb 22  2013 httxt2dbm
    lrwxrwxrwx. 1 root root          18 May 14  2018 hwclock -> ../../sbin/hwclock
    -rwxr-xr-x. 2 root root       26520 Feb 21  2013 iconvconfig
    -rwxr-xr-x. 2 root root       26520 Feb 21  2013 iconvconfig.x86_64
    -rwxr-xr-x. 1 root root       39952 Feb 21  2013 irqbalance
    -rwxr-xr-x. 1 root root       31800 Apr  5  2012 lchage
    -rwxr-xr-x. 1 root root       13552 Feb 21  2013 ldattach
    -rwxr-xr-x. 1 root root       52808 Feb 21  2013 ledctl
    -rwxr-xr-x. 1 root root       55168 Feb 21  2013 ledmon
    -rwxr-xr-x. 1 root root       27976 Apr  5  2012 lgroupadd
    -rwxr-xr-x. 1 root root       26888 Apr  5  2012 lgroupdel
    -rwxr-xr-x. 1 root root       32800 Apr  5  2012 lgroupmod
    -rwxr-xr-x. 1 root root       16024 Apr  5  2012 lid
    -rwxr-xr-x. 1 root root       32632 Apr  5  2012 lnewusers
    -rwxr-xr-x. 1 root root       18064 Feb 21  2013 lnstat
    lrwxrwxrwx. 1 root root          17 May 14  2018 load_policy -> /sbin/load_policy
    -rwx--s--x. 1 root lock       15808 Aug 18  2010 lockdev
    -rwxr-xr-x. 1 root root       59744 Aug 15  2012 logrotate
    -rwxr-xr-x. 1 root root        2197 Sep 23  2011 lokkit
    -rwxr-xr-x. 1 root root       27208 Nov 20  2012 lpadmin
    -rwxr-xr-x. 1 root root       30800 Apr  5  2012 lpasswd
    lrwxrwxrwx. 1 root root          27 May 14  2018 lpc -> /etc/alternatives/print-lpc
    -rwxr-xr-x. 1 root root       14688 Nov 20  2012 lpc.cups
    -rwxr-xr-x. 1 root root       14576 Nov 20  2012 lpinfo
    -rwxr-xr-x. 1 root root       10560 Nov 20  2012 lpmove
    -rwxr-xr-x. 1 root root      145872 Apr  3  2012 lsof
    lrwxrwxrwx. 1 root root          14 May 14  2018 lsusb -> /usr/bin/lsusb
    -rwxr-xr-x. 1 root root       33040 Apr  5  2012 luseradd
    -rwxr-xr-x. 1 root root       28784 Apr  5  2012 luserdel
    -rwxr-xr-x. 1 root root       35144 Apr  5  2012 lusermod
    -rwxr-xr-x. 1 root root      248760 Feb 21  2013 makedumpfile
    -rwxr-xr-x. 1 root root       14118 Feb 21  2013 makewhatis
    lrwxrwxrwx. 1 root root          23 May 14  2018 matchpathcon -> ../../sbin/matchpathcon
    lrwxrwxrwx. 1 root root          15 May 14  2018 mkdict -> cracklib-format
    -rwxr-xr-x. 1 root root        9624 Feb 21  2013 mklost+found
    -rwxr-xr-x. 1 root root       10640 Nov 10  2010 mksock
    -rwxr-xr-x. 1 root root      317096 Nov 10  2010 modem-manager
    -rwxr-xr-x. 1 root root       64512 Aug 16  2010 mtr
    -rwxr-xr-x. 1 root root      112912 Nov 12  2012 netscsid
    -rwxr-xr-x. 1 root root      858456 Feb 21  2013 NetworkManager
    -rwxr-xr-x. 1 root root       65432 Dec  7  2011 newusers
    -rwxr-xr-x. 1 root root       20352 Feb 21  2013 nstat
    -rwxr-xr-x. 1 root root      614144 Feb 22  2013 ntpd
    -rwxr-xr-x. 1 root root       70864 Feb 22  2013 ntpdate
    -rwxr-xr-x. 1 root root      190160 Feb 22  2013 ntpdc
    -rwxr-xr-x. 1 root root      107456 Feb 22  2013 ntp-keygen
    -rwxr-xr-x. 1 root root      179728 Feb 22  2013 ntpq
    -rwxr-xr-x. 1 root root       19896 Feb 22  2013 ntptime
    -rwxr-xr-x. 1 root root       31192 Jun 22  2012 ntsysv
    -rwxr-xr-x. 1 root root       14632 Feb 21  2013 open_init_pty
    -rwxr-xr-x. 1 root root       12144 Dec  7  2011 ownership
    -rwxr-xr-x. 1 root root      353928 Feb 21  2013 packagekitd
    lrwxrwxrwx. 1 root root          15 May 14  2018 packer -> cracklib-packer
    -rwxr-xr-x. 1 root root        9156 Feb 21  2013 pethtool
    -rwxr-xr-x. 1 root root        2932 Feb 21  2013 pifconfig
    lrwxrwxrwx. 1 root root          10 May 14  2018 ping6 -> /bin/ping6
    -rwxr-xr-x. 1 root root       15536 Feb 21  2013 pk-device-rebind
    -rwxr-xr-x. 1 root root       18704 Nov 27  2012 pluginviewer
    -rwxr-xr-x. 1 root root        6349 Feb 22  2013 plymouth-set-default-theme
    lrwxrwxrwx. 1 root root          33 May 14  2018 pm-hibernate -> /usr/lib64/pm-utils/bin/pm-action
    -rwxr-xr-x. 1 root root        1570 Jul 18  2012 pm-powersave
    lrwxrwxrwx. 1 root root          33 May 14  2018 pm-suspend -> /usr/lib64/pm-utils/bin/pm-action
    lrwxrwxrwx. 1 root root          33 May 14  2018 pm-suspend-hybrid -> /usr/lib64/pm-utils/bin/pm-action
    -rwxr-xr-x. 1 root root      213736 Dec  2  2011 postalias
    -rwxr-xr-x. 1 root root      119400 Dec  2  2011 postcat
    -rwxr-xr-x. 1 root root      304200 Dec  2  2011 postconf
    -rwxr-sr-x. 1 root postdrop  180808 Dec  2  2011 postdrop
    -rwxr-xr-x. 1 root root      110536 Dec  2  2011 postfix
    -rwxr-xr-x. 1 root root      118792 Dec  2  2011 postkick
    -rwxr-xr-x. 1 root root      114664 Dec  2  2011 postlock
    -rwxr-xr-x. 1 root root      110728 Dec  2  2011 postlog
    -rwxr-xr-x. 1 root root      217800 Dec  2  2011 postmap
    -rwxr-xr-x. 1 root root      127400 Dec  2  2011 postmulti
    -rwxr-sr-x. 1 root postdrop  213736 Dec  2  2011 postqueue
    -rwxr-xr-x. 1 root root      127400 Dec  2  2011 postsuper
    -r-xr-xr-x. 1 root root      359592 Aug 22  2010 pppd
    -rwxr-xr-x. 1 root root       53512 Aug 22  2010 pppdump
    -r-xr-xr-x. 1 root root       19672 Aug 22  2010 pppoe-discovery
    -rwxr-xr-x. 1 root root       17088 Aug 22  2010 pppstats
    -rwxr-xr-x. 1 root root     1320696 Dec  7  2011 prelink
    -rwxr-xr-x. 1 root root       42416 Dec  7  2011 pwck
    -rwxr-xr-x. 1 root root       38296 Dec  7  2011 pwconv
    -rwxr-xr-x. 1 root root       29016 Dec  7  2011 pwunconv
    -rwxr-xr-x. 1 root root       74400 Nov 20  2012 quota_nld
    -rwxr-xr-x. 1 root root       11480 Nov 20  2012 quotastats
    -rwxr-xr-x. 1 root root        3443 Dec  6  2012 raid-check
    -rwxr-xr-x. 1 root root       15616 Feb 21  2013 readprofile
    -rwx------. 1 root root        2896 Feb 22  2013 redhat_lsb_trigger.x86_64
    lrwxrwxrwx. 1 root root          10 May 14  2018 reject -> cupsaccept
    -rwxr-xr-x. 1 root root       70304 Nov 20  2012 repquota
    -rwxr-xr-x. 1 root root       31648 Feb 21  2013 restorecond
    -rwxr-xr-x. 1 root root       16744 Feb 22  2013 rotatelogs
    -rwxr-xr-x. 1 root root       74664 Nov 20  2012 rpc.rquotad
    -rwxr-xr-x. 1 root root       36416 Feb 21  2013 rtacct
    -rwxr-xr-x. 1 root root       17856 Feb 21  2013 rtcwake
    -rwxr-xr-x. 1 root root       12432 Aug 20  2010 rtkitctl
    -rwxr-xr-x. 1 root root       10568 Feb 21  2013 run_init
    -rwxr-xr-x. 1 root root       32288 Jul 17  2012 sa
    -rwxr-xr-x. 1 root root        8896 Dec  7  2011 safe_finger
    -rwxr-xr-x. 1 root root       75784 Nov 11  2010 saned
    -rwxr-xr-x. 1 root root       88496 Nov 27  2012 saslauthd
    -rwxr-xr-x. 1 root root       20320 Nov 27  2012 sasldblistusers2
    -rwxr-xr-x. 1 root root       18088 Nov 27  2012 saslpasswd2
    -rwxr-xr-x. 1 root root       10256 Jun 22  2012 selinuxconlist
    -rwxr-xr-x. 1 root root       10616 Jun 22  2012 selinuxdefcon
    -rwxr-xr-x. 1 root root        7968 Jun 22  2012 selinuxenabled
    -rwxr-xr-x. 1 root root       19352 Feb 21  2013 semodule
    lrwxrwxrwx. 1 root root          21 May 14  2018 sendmail -> /etc/alternatives/mta
    -rwxr-xr-x. 1 root root      213616 Dec  2  2011 sendmail.postfix
    -rwxr-xr-x. 1 root root       14784 Feb 21  2013 sestatus
    -rwxr-xr-x. 1 root root       11032 Dec  7  2011 setcap
    -rwxr-xr-x. 1 root root        9296 Jun 22  2012 setenforce
    -rwxr-xr-x. 1 root root       82720 Nov 20  2012 setquota
    -rwxr-xr-x. 1 root root       14720 Feb 21  2013 setsebool
    -rwxr-xr-x. 1 root root       15976 Aug 25  2010 setup
    -rwxr-xr-x. 1 root root       15184 May 31  2012 skdump
    -rwxr-xr-x. 1 root root        9544 May 31  2012 sktest
    -rwxr-xr-x. 1 root root      525072 Feb 21  2013 smartctl
    -rwxr-xr-x. 1 root root      500400 Feb 21  2013 smartd
    -rwxr-xr-x. 1 root root       82472 Dec  2  2011 smtp-sink
    -rwxr-xr-x. 1 root root       69168 Dec  2  2011 smtp-source
    -rwxr-xr-x. 1 root root       30744 Feb 21  2013 snmpd
    -rwxr-xr-x. 1 root root       30776 Feb 21  2013 snmptrapd
    -rwxr-xr-x. 1 root root         926 Feb 22  2013 sosreport
    -rwxr-xr-x. 1 root root       42480 Feb 21  2013 spice-vdagentd
    -rwxr-xr-x. 1 root root       75056 Feb 21  2013 ss
    -rwxr-xr-x. 1 root root      526008 Feb 21  2013 sshd
    -r-s--x---. 1 root apache     13984 Feb 22  2013 suexec
    lrwxrwxrwx. 1 root root          39 May 14  2018 system-config-authentication -> /usr/share/authconfig/authconfig-gtk.py
    -rwxr-xr-x. 1 root root         142 Jun 22  2012 system-config-keyboard
    -rwxr-xr-x. 1 root root         188 Nov 11  2010 system-config-network
    lrwxrwxrwx. 1 root root          45 May 14  2018 system-config-network-cmd -> ../share/system-config-network/netconf_cmd.py
    lrwxrwxrwx. 1 root root          45 May 14  2018 system-config-network-tui -> ../share/system-config-network/netconf_tui.py
    -rwxr-xr-x. 1 root root         180 Feb 22  2013 sys-unconfig
    -rwxr-xr-x. 1 root root       35648 Dec  7  2011 tcpd
    -rwxr-xr-x. 1 root root      742032 Mar 26  2012 tcpdump
    -rwxr-xr-x. 1 root root       24568 Mar 26  2012 tcpslice
    -rwxr-xr-x. 1 root root       14824 Nov 27  2012 testsaslauthd
    -rwxr-xr-x. 1 root root      248872 Jun 22  2012 thin_check
    -rwxr-xr-x. 1 root root      365240 Jun 22  2012 thin_dump
    -rwxr-xr-x. 1 root root      370200 Jun 22  2012 thin_restore
    -rwxr-xr-x. 1 root root        5816 Feb 22  2013 tickadj
    -rwxr-xr-x. 1 root root       21656 Sep 23  2011 tmpwatch
    -rwxr-xr-x. 1 root root       10656 Jun 22  2012 togglesebool
    lrwxrwxrwx. 1 root root          14 May 14  2018 tracepath -> /bin/tracepath
    lrwxrwxrwx. 1 root root          15 May 14  2018 tracepath6 -> /bin/tracepath6
    -rwxr-xr-x. 1 root root       19680 Dec  7  2011 try-from
    -rwxr-xr-x. 1 root root       12536 Feb 21  2013 tunelp
    -rwx------. 1 root root        3784 Feb 21  2013 tzdata-update
    lrwxrwxrwx. 1 root root          12 May 14  2018 update-alternatives -> alternatives
    -rwxr-xr-x. 1 root root        1755 Feb 21  2013 update-pciids
    -rwxr-xr-x. 1 root root        3582 Feb 21  2013 update-smart-drivedb
    -rwxr-xr-x. 1 root root       51560 Aug 22  2010 usbmuxd
    -rwxr-x---. 1 root root      103096 Dec  7  2011 useradd
    -rwxr-x---. 1 root root       69560 Dec  7  2011 userdel
    -rws--x--x. 1 root root       41112 Aug 22  2010 userhelper
    -rwxr-x---. 1 root root       98680 Dec  7  2011 usermod
    -rwsr-xr-x. 1 root root        9000 Feb 22  2013 usernetctl
    lrwxrwxrwx. 1 root root           4 May 14  2018 vigr -> vipw
    -rwxr-xr-x. 1 root root       53160 Dec  7  2011 vipw
    -rwxr-xr-x. 1 root root        6768 Feb 21  2013 virt-what
    -rwxr-xr-x. 1 root root      154680 Feb 21  2013 visudo
    lrwxrwxrwx. 1 root root          37 Jun  7  2018 vmtoolsd -> /usr/lib/vmware-tools/sbin64/vmtoolsd
    lrwxrwxrwx. 1 root root          43 Jun  7  2018 vmware-checkvm -> /usr/lib/vmware-tools/sbin64/vmware-checkvm
    lrwxrwxrwx. 1 root root          37 Jun  7  2018 vmware-namespace-cmd -> /usr/lib/vmware-tools/bin64/appLoader
    lrwxrwxrwx. 1 root root          43 Jun  7  2018 vmware-rpctool -> /usr/lib/vmware-tools/sbin64/vmware-rpctool
    lrwxrwxrwx. 1 root root          37 Jun  7  2018 vmware-vmblock-fuse -> /usr/lib/vmware-tools/bin64/appLoader
    -rwxr-xr-x. 1 root root       14840 Dec  7  2011 vpddecode
    -rwxr-xr-x. 1 root root       82656 Nov 20  2012 warnquota
    -rwxr-xr-x. 1 root root     7892520 Feb 21  2013 winbindd
    -rwxr-xr-x. 1 root root       48464 Feb  4  2013 wpa_cli
    -rwxr-xr-x. 1 root root       35904 Feb  4  2013 wpa_passphrase
    -rwxr-xr-x. 1 root root      712768 Feb  4  2013 wpa_supplicant
    -rwxr-xr-x. 1 root root        9416 Jun 22  2012 yum-complete-transaction
    -rwxr-xr-x. 1 root root        8022 Jun 22  2012 yumdb
    -rwxr-xr-x. 1 root root       17392 Feb 21  2013 zdump
    -rwxr-xr-x. 1 root root       50256 Feb 21  2013 zic
    ll /usr/sbin
    yang@cMaster:~]#ll /sbin
    total 15320
    -rwxr-xr-x. 1 root root   10704 Jul 17  2012 accton
    -rwxr-xr-x. 1 root root    8456 Feb 21  2013 addpart
    -rwxr-xr-x. 1 root root   23952 Feb 21  2013 agetty
    -rwxr-xr-x. 1 root root   94168 Feb 21  2013 alsactl
    -rwxr-xr-x. 1 root root   62816 May 10  2012 arp
    -rwxr-xr-x. 1 root root   17776 Jul 18  2011 arping
    -rwxr-x---. 1 root root   92192 Jun 22  2012 audispd
    -rwxr-x---. 1 root root  133072 Jun 22  2012 auditctl
    -rwxr-x---. 1 root root  174168 Jun 22  2012 auditd
    -rwxr-xr-x. 1 root root  149120 Jun 22  2012 aureport
    -rwxr-xr-x. 1 root root  167648 Jun 22  2012 ausearch
    -rwxr-x---. 1 root root   91720 Jun 22  2012 autrace
    -rwxr-xr-x. 1 root root   29752 Feb 21  2013 badblocks
    -rwxr-xr-x. 1 root root   36560 Feb 21  2013 biosdevname
    -r-xr-xr-x. 1 root root    9722 Feb 21  2013 blkdeactivate
    -rwxr-xr-x. 1 root root   27824 Feb 21  2013 blkid
    -rwxr-xr-x. 1 root root   17336 Feb 21  2013 blockdev
    -rwxr-xr-x. 1 root root 1045992 Jun 22  2012 busybox
    -rwxr-xr-x. 1 root root   33559 Feb 21  2013 cbq
    -rwxr-xr-x. 1 root root   61416 Feb 21  2013 cfdisk
    -rwxr-xr-x. 1 root root   29072 Feb 21  2013 chcpu
    -rwxr-xr-x. 1 root root   35264 Jun 22  2012 chkconfig
    lrwxrwxrwx. 1 root root       7 May 14  2018 clock -> hwclock
    -rwxr-xr-x. 1 root root    7896 Feb 22  2013 consoletype
    -rwxr-xr-x. 1 root root   14632 Jul 19  2011 crda
    -rwxr-xr-x. 1 root root   41640 Jun 22  2012 cryptsetup
    -rwxr-xr-x. 1 root root    8592 Feb 21  2013 ctrlaltdel
    -rwxr-xr-x. 1 root root   96336 Feb 21  2013 debugfs
    -rwxr-xr-x. 1 root root    8416 Feb 21  2013 delpart
    -rwxr-xr-x. 1 root root  135344 Feb 21  2013 depmod
    -rwxr-xr-x. 1 root root  572256 Feb 22  2013 dhclient
    -rwxr-xr-x. 1 root root   25352 Sep 25  2012 dhclient-script
    -rwxr-xr-x. 2 root root   13168 Jun 22  2012 dm_dso_reg_tool
    -r-xr-xr-x. 1 root root   40008 Feb 21  2013 dmeventd
    -rwxr-xr-x. 2 root root   13168 Jun 22  2012 dmevent_tool
    -rwxr-xr-x. 1 root root   26256 Jun 22  2012 dmraid
    lrwxrwxrwx. 1 root root       6 May 14  2018 dmraid.static -> dmraid
    -rwxr-xr-x. 1 root root   73760 Feb 21  2013 dmsetup
    -rwxr-xr-x. 1 root root   55344 Dec  7  2011 dosfsck
    -rwxr-xr-x. 1 root root   52288 Dec  7  2011 dosfslabel
    -rwxr-xr-x. 1 root root   11979 Feb 21  2013 dracut
    -rwxr-xr-x. 1 root root   23288 Feb 21  2013 dumpe2fs
    -rwxr-xr-x. 5 root root  197256 Feb 21  2013 e2fsck
    -rwxr-xr-x. 1 root root   28296 Feb 21  2013 e2image
    -rwxr-xr-x. 2 root root   42728 Feb 21  2013 e2label
    -rwxr-xr-x. 1 root root   14592 Feb 21  2013 e2undo
    -rwxr-xr-x. 1 root root   14712 May 10  2012 ether-wake
    -rwxr-xr-x. 1 root root  236848 Feb 21  2013 ethtool
    -rwxr-xr-x. 1 root root   15016 Feb 21  2013 faillock
    -rwxr-xr-x. 1 root root  106008 Feb 21  2013 fdisk
    -rwxr-xr-x. 1 root root    9608 Feb 21  2013 findfs
    -rwxr-xr-x. 1 root root    6049 Feb 21  2013 fixfiles
    -r-xr-xr-x. 1 root root   14083 Feb 21  2013 fsadm
    -rwxr-xr-x. 1 root root   34680 Feb 21  2013 fsck
    -rwxr-xr-x. 1 root root   15976 Feb 21  2013 fsck.cramfs
    -rwxr-xr-x. 5 root root  197256 Feb 21  2013 fsck.ext2
    -rwxr-xr-x. 5 root root  197256 Feb 21  2013 fsck.ext3
    -rwxr-xr-x. 5 root root  197256 Feb 21  2013 fsck.ext4
    -rwxr-xr-x. 5 root root  197256 Feb 21  2013 fsck.ext4dev
    lrwxrwxrwx. 1 root root       7 May 14  2018 fsck.msdos -> dosfsck
    lrwxrwxrwx. 1 root root       7 May 14  2018 fsck.vfat -> dosfsck
    -rwxr-xr-x. 1 root root   10512 Feb 21  2013 fsfreeze
    -rwxr-xr-x. 1 root root    8336 Feb 22  2013 fstab-decode
    -rwxr-xr-x. 1 root root   18384 Feb 21  2013 fstrim
    -rwxr-xr-x. 1 root root   29160 Jun 24  2011 fuser
    -rwxr-xr-x. 1 root root    8096 Feb 22  2013 genhostid
    -rwxr-xr-x. 1 root root   11992 Feb 22  2013 getkey
    -rwxr-xr-x. 1 root root  754248 Feb 21  2013 grub
    -rwxr-xr-x. 1 root root   50456 Jun 22  2012 grubby
    -rwxr-xr-x. 1 root root    2463 Feb 21  2013 grub-crypt
    -rwxr-xr-x. 1 root root   17989 Feb 21  2013 grub-install
    -rwxr-xr-x. 1 root root    2293 Feb 21  2013 grub-md5-crypt
    -rwxr-xr-x. 1 root root    2473 Feb 21  2013 grub-terminfo
    lrwxrwxrwx. 1 root root       6 May 14  2018 halt -> reboot
    -rwxr-xr-x. 1 root root  100664 Nov 11  2010 hdparm
    -rwxr-xr-x. 1 root root   48144 Feb 21  2013 hwclock
    -rwxr-xr-x. 1 root root    3056 Feb 21  2013 ifcfg
    -rwxr-xr-x. 1 root root   73936 May 10  2012 ifconfig
    -rwxr-xr-x. 1 root root    1331 Jan  9  2013 ifdown
    -rwxr-xr-x. 1 root root   22168 Jul 18  2011 ifenslave
    -rwxr-xr-x. 1 root root   32216 Aug 18  2010 ifrename
    -rwxr-xr-x. 1 root root    4367 Jan  9  2013 ifup
    -rwxr-xr-x. 1 root root  150352 Jun 22  2012 init
    -rwxr-xr-x. 1 root root  138784 Jun 22  2012 initctl
    -rwxr-xr-x. 1 root root   14120 Feb 21  2013 insmod
    -rwxr-xr-x. 1 root root  797088 Feb 21  2013 insmod.static
    -rwxr-xr-x. 1 root root   43584 Aug 19  2010 install-info
    -rwxr-xr-x. 1 root root    2670 Jun 22  2012 installkernel
    -rwxr-xr-x. 1 root root  236152 Feb 21  2013 ip
    lrwxrwxrwx. 1 root root      34 May 14  2018 ip6tables -> /etc/alternatives/ip6tables.x86_64
    lrwxrwxrwx. 1 root root      15 May 14  2018 ip6tables-1.4.7 -> ip6tables-multi
    lrwxrwxrwx. 1 root root      45 May 14  2018 ip6tables-multi -> /etc/alternatives/sbin-ip6tables-multi.x86_64
    -rwxr-xr-x. 1 root root   50040 Feb 21  2013 ip6tables-multi-1.4.7
    lrwxrwxrwx. 1 root root      47 May 14  2018 ip6tables-restore -> /etc/alternatives/sbin-ip6tables-restore.x86_64
    lrwxrwxrwx. 1 root root      15 May 14  2018 ip6tables-restore-1.4.7 -> ip6tables-multi
    lrwxrwxrwx. 1 root root      44 May 14  2018 ip6tables-save -> /etc/alternatives/sbin-ip6tables-save.x86_64
    lrwxrwxrwx. 1 root root      15 May 14  2018 ip6tables-save-1.4.7 -> ip6tables-multi
    -rwxr-xr-x. 1 root root   19352 May 10  2012 ipmaddr
    lrwxrwxrwx. 1 root root      33 May 14  2018 iptables -> /etc/alternatives/iptables.x86_64
    lrwxrwxrwx. 1 root root      14 May 14  2018 iptables-1.4.7 -> iptables-multi
    lrwxrwxrwx. 1 root root      44 May 14  2018 iptables-multi -> /etc/alternatives/sbin-iptables-multi.x86_64
    -rwxr-xr-x. 1 root root   58872 Feb 21  2013 iptables-multi-1.4.7
    lrwxrwxrwx. 1 root root      46 May 14  2018 iptables-restore -> /etc/alternatives/sbin-iptables-restore.x86_64
    lrwxrwxrwx. 1 root root      14 May 14  2018 iptables-restore-1.4.7 -> iptables-multi
    lrwxrwxrwx. 1 root root      43 May 14  2018 iptables-save -> /etc/alternatives/sbin-iptables-save.x86_64
    lrwxrwxrwx. 1 root root      14 May 14  2018 iptables-save-1.4.7 -> iptables-multi
    -rwxr-xr-x. 1 root root   23272 May 10  2012 iptunnel
    -rwxr-xr-x. 1 root root   79112 Aug 22  2010 iw
    -rwxr-xr-x. 1 root root   30288 Aug 18  2010 iwconfig
    -rwxr-xr-x. 1 root root   18664 Aug 18  2010 iwevent
    -rwxr-xr-x. 1 root root   14400 Aug 18  2010 iwgetid
    -rwxr-xr-x. 1 root root   36504 Aug 18  2010 iwlist
    -rwxr-xr-x. 1 root root   15224 Aug 18  2010 iwpriv
    -rwxr-xr-x. 1 root root   14272 Aug 18  2010 iwspy
    -rwxr-xr-x. 1 root root   11088 Feb 21  2013 kdump
    -rwxr-xr-x. 1 root root  180624 Feb 21  2013 kexec
    -rwxr-xr-x. 1 root root   19080 Jul 19  2011 killall5
    -rwxr-xr-x. 1 root root   38008 Feb 21  2013 kpartx
    -rwxr-xr-x. 1 root root  893872 Feb 21  2013 ldconfig
    -rwxr-xr-x. 1 root root   10456 Feb 21  2013 load_policy
    -rwxr-xr-x. 1 root root   13104 Feb 21  2013 logsave
    -rwxr-xr-x. 1 root root   31952 Feb 21  2013 losetup
    -rwxr-xr-x. 1 root root    2365 Feb 21  2013 lsinitrd
    -rwxr-xr-x. 1 root root    9096 Feb 21  2013 lsmod
    -rwxr-xr-x. 1 root root   71800 Feb 21  2013 lspci
    lrwxrwxrwx. 1 root root       9 May 14  2018 lspcmcia -> pccardctl
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvchange -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvconvert -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvcreate -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvdisplay -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvextend -> lvm
    -r-xr-xr-x. 1 root root 1013336 Feb 21  2013 lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvmchange -> lvm
    -r-xr-xr-x. 1 root root    6691 Feb 21  2013 lvmconf
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvmdiskscan -> lvm
    -r-xr-xr-x. 1 root root    7301 Feb 21  2013 lvmdump
    -r-xr-xr-x. 1 root root   49480 Feb 21  2013 lvmetad
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvmsadc -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvmsar -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvreduce -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvremove -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvrename -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvresize -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvs -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 lvscan -> lvm
    -rwxr-xr-x. 1 root root   28792 Nov 10  2010 MAKEDEV
    -rwxr-xr-x. 1 root root   12024 Jun 22  2012 matchpathcon
    -rwxr-xr-x. 1 root root  467208 Feb 21  2013 mdadm
    -rwxr-xr-x. 1 root root  307128 Feb 21  2013 mdmon
    -rwxr-xr-x. 1 root root   11696 Feb 21  2013 microcode_ctl
    -rwxr-xr-x. 1 root root   21760 May 10  2012 mii-diag
    -rwxr-xr-x. 1 root root   18200 May 10  2012 mii-tool
    -rwxr-xr-x. 1 root root   19144 Sep 23  2011 mingetty
    -rwxr-xr-x. 1 root root   30592 Dec  7  2011 mkdosfs
    -rwxr-xr-x. 1 root root  109796 Feb 21  2013 mkdumprd
    -rwxr-xr-x. 5 root root   68960 Feb 21  2013 mke2fs
    -rwxr-xr-x. 1 root root   10336 Feb 21  2013 mkfs
    -rwxr-xr-x. 1 root root   26208 Feb 21  2013 mkfs.cramfs
    -rwxr-xr-x. 5 root root   68960 Feb 21  2013 mkfs.ext2
    -rwxr-xr-x. 5 root root   68960 Feb 21  2013 mkfs.ext3
    -rwxr-xr-x. 5 root root   68960 Feb 21  2013 mkfs.ext4
    -rwxr-xr-x. 5 root root   68960 Feb 21  2013 mkfs.ext4dev
    lrwxrwxrwx. 1 root root       7 May 14  2018 mkfs.msdos -> mkdosfs
    lrwxrwxrwx. 1 root root       7 May 14  2018 mkfs.vfat -> mkdosfs
    -rwxr-xr-x. 1 root root   22608 Feb 21  2013 mkhomedir_helper
    -rwxr-xr-x. 1 root root    3412 Feb 21  2013 mkinitrd
    -rwxr-xr-x. 1 root root   22648 Feb 21  2013 mkswap
    -rwxr-xr-x. 1 root root   97624 Feb 21  2013 modinfo
    -rwxr-xr-x. 1 root root  123184 Feb 21  2013 modprobe
    -rwxr-xr-x. 1 root root   11616 Dec  7  2011 mount.fuse
    -rwxr-xr-x. 1 root root    1338 Feb 21  2013 mount.tmpfs
    -r-xr-xr-x. 1 root root   67536 Jun  7  2018 mount.vmhgfs
    -rwxr-xr-x. 1 root root   15600 May 10  2012 nameif
    -rwxr-sr-x. 1 root root    8792 Feb 22  2013 netreport
    -rwxr-xr-x. 1 root root   13818 Jun 22  2012 new-kernel-pkg
    -rwxr-xr-x. 1 root root    7816 Feb 21  2013 nologin
    -rwxr-xr-x. 1 root root   43512 Feb 21  2013 pam_console_apply
    -rwxr-xr-x. 1 root root   17272 Feb 21  2013 pam_tally2
    -rwsr-xr-x. 1 root root   10272 Feb 21  2013 pam_timestamp_check
    -rwxr-xr-x. 1 root root   86984 Feb 21  2013 parted
    -rwxr-xr-x. 1 root root   14656 Feb 21  2013 partprobe
    -rwxr-xr-x. 1 root root   25496 Feb 21  2013 partx
    -rwxr-xr-x. 1 root root   36176 Nov 11  2010 pccardctl
    lrwxrwxrwx. 1 root root       8 May 14  2018 pidof -> killall5
    -rwxr-xr-x. 1 root root    7792 Feb 21  2013 pivot_root
    -rwxr-xr-x. 1 root root   10752 May 10  2012 plipconfig
    -rwxr-xr-x. 1 root root   76208 Feb 22  2013 plymouthd
    lrwxrwxrwx. 1 root root      11 May 14  2018 portrelease -> portreserve
    -rwxr-xr-x. 1 root root   14664 Apr  3  2012 portreserve
    lrwxrwxrwx. 1 root root       6 May 14  2018 poweroff -> reboot
    -rwxr-xr-x. 1 root root   29560 Feb 22  2013 ppp-watch
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvchange -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvck -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvcreate -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvdisplay -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvmove -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvremove -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvresize -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvs -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 pvscan -> lvm
    -rwxr-xr-x. 1 root root  103080 Nov 20  2012 quotacheck
    lrwxrwxrwx. 1 root root       7 May 14  2018 quotaoff -> quotaon
    -rwxr-xr-x. 1 root root   74240 Nov 20  2012 quotaon
    -rwxr-xr-x. 1 root root   20576 Jul 18  2011 rdisc
    -rwxr-xr-x. 1 root root   26976 Aug 23  2010 readahead
    -rwxr-xr-x. 1 root root   28392 Aug 23  2010 readahead-collector
    -rwxr-xr-x. 1 root root   14832 Jun 22  2012 reboot
    -rwxr-xr-x. 1 root root   11488 Jul 19  2011 regdbdump
    lrwxrwxrwx. 1 root root       7 May 14  2018 reload -> initctl
    -rwxr-xr-x. 1 root root   41712 Feb 21  2013 resize2fs
    lrwxrwxrwx. 1 root root       7 May 14  2018 restart -> initctl
    lrwxrwxrwx. 1 root root       8 May 14  2018 restorecon -> setfiles
    -rwxr-xr-x. 1 root root   12416 Aug 22  2010 rfkill
    -rwxr-xr-x. 1 root root   16672 Feb 21  2013 rmmod
    -rwxr-xr-x. 1 root root   17632 Dec 17  2011 rngd
    -rwxr-xr-x. 1 root root   59784 May 10  2012 route
    -rwxr-xr-x. 1 root root  391968 Feb 21  2013 rsyslogd
    -rwxr-xr-x. 1 root root   38248 Feb 21  2013 rtmon
    -rwxr-xr-x. 1 root root   14352 Jun 22  2012 runlevel
    -rwxr-xr-x. 1 root root   32696 Jun 22  2012 runuser
    lrwxrwxrwx. 1 root root      19 May 14  2018 scsi_id -> ../lib/udev/scsi_id
    -rwxr-xr-x. 1 root root   10600 Feb 22  2013 securetty
    -rwxr-xr-x. 1 root root    1694 Feb 22  2013 service
    -rwxr-xr-x. 1 root root   23168 Feb 21  2013 setfiles
    -rwxr-xr-x. 1 root root   23928 Feb 21  2013 setpci
    -rwxr-xr-x. 1 root root    1503 Feb 25  2010 setregdomain
    -rwxr-xr-x. 1 root root     850 Feb 22  2013 setsysfont
    -rwxr-xr-x. 1 root root   64928 Feb 21  2013 sfdisk
    -rwxr-xr-x. 1 root root   16752 Aug 22  2010 sgpio
    -rwxr-xr-x. 1 root root   60400 Jun 22  2012 shutdown
    -rwxr-xr-x. 1 root root   38224 May 10  2012 slattach
    -rwxr-xr-x. 1 root root  686520 Feb 21  2013 sln
    lrwxrwxrwx. 1 root root       7 May 14  2018 start -> initctl
    -rwxr-xr-x. 1 root root    8109 Feb 21  2013 start_udev
    lrwxrwxrwx. 1 root root       7 May 14  2018 status -> initctl
    lrwxrwxrwx. 1 root root       7 May 14  2018 stop -> initctl
    -rwxr-xr-x. 1 root root   17040 Jul 19  2011 sulogin
    -rwxr-xr-x. 1 root root      67 Feb 22  2013 sushell
    lrwxrwxrwx. 1 root root       6 May 14  2018 swapoff -> swapon
    -rwxr-xr-x. 1 root root   28792 Feb 21  2013 swapon
    -rwxr-xr-x. 1 root root   12232 Feb 21  2013 switch_root
    -rwxr-xr-x. 1 root root   16768 Nov 15  2012 sysctl
    -rwxr-xr-x. 1 root root  259232 Feb 21  2013 tc
    -rwxr-xr-x. 1 root root   51536 Jun 22  2012 telinit
    -rwxr-xr-x. 2 root root   42728 Feb 21  2013 tune2fs
    -rwxr-xr-x. 1 root root  137256 Feb 21  2013 udevadm
    -rwxr-xr-x. 1 root root  129120 Feb 21  2013 udevd
    -rwxr-xr-x. 1 root root   12224 Jul 19  2011 umount.hal
    -rwxr-xr-x. 1 root root   12440 Dec  7  2011 umount.udisks
    -rwsr-xr-x. 1 root root   34840 Feb 21  2013 unix_chkpwd
    -rwx------. 1 root root   34840 Feb 21  2013 unix_update
    -rwxr-xr-x. 1 root root   13480 Aug 18  2010 vconfig
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgcfgbackup -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgcfgrestore -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgchange -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgck -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgconvert -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgcreate -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgdisplay -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgexport -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgextend -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgimport -> lvm
    -r-xr-xr-x. 1 root root   10399 Feb 21  2013 vgimportclone
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgmerge -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgmknodes -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgreduce -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgremove -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgrename -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgs -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgscan -> lvm
    lrwxrwxrwx. 1 root root       3 May 14  2018 vgsplit -> lvm
    -rwxr-xr-x. 1 root root   17400 Feb 21  2013 vmcore-dmesg
    -rwxr-xr-x. 1 root root   15410 Feb 21  2013 weak-modules
    -rwxr-xr-x. 1 root root   16576 Feb 21  2013 wipefs
    ll /sbin
    yang@cMaster:~]#ll /usr/java/jdk1.8.0_161/bin
    total 732
    -rwxr-xr-x. 1 root root   7965 Dec 19  2017 appletviewer
    lrwxrwxrwx. 1 root root      8 Jul  5  2018 ControlPanel -> jcontrol
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 extcheck
    -rwxr-xr-x. 1 root root   7973 Dec 19  2017 idlj
    -rwxr-xr-x. 1 root root   7925 Dec 19  2017 jar
    -rwxr-xr-x. 1 root root   7957 Dec 19  2017 jarsigner
    -rwxr-xr-x. 1 root root   7734 Dec 19  2017 java
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 javac
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 javadoc
    -rwxr-xr-x. 1 root root   2293 Dec 19  2017 javafxpackager
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 javah
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 javap
    -rwxr-xr-x. 1 root root   2293 Dec 19  2017 javapackager
    -rwxr-xr-x. 1 root root   1809 Dec 19  2017 java-rmi.cgi
    -rwxr-xr-x. 1 root root 132017 Dec 19  2017 javaws
    -rwxr-xr-x. 1 root root   7925 Dec 19  2017 jcmd
    -rwxr-xr-x. 1 root root   8013 Dec 19  2017 jconsole
    -rwxr-xr-x. 1 root root   6264 Dec 19  2017 jcontrol
    -rwxr-xr-x. 1 root root   7981 Dec 19  2017 jdb
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 jdeps
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 jhat
    -rwxr-xr-x. 1 root root   8109 Dec 19  2017 jinfo
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 jjs
    -rwxr-xr-x. 1 root root   8109 Dec 19  2017 jmap
    -rwxr-xr-x. 1 root root  28262 Dec 19  2017 jmc
    -rwxr-xr-x. 1 root root    402 Nov 24  2016 jmc.ini
    -rwxr-xr-x. 1 root root   7925 Dec 19  2017 jps
    -rwxr-xr-x. 1 root root   7949 Dec 19  2017 jrunscript
    -rwxr-xr-x. 1 root root   7981 Dec 19  2017 jsadebugd
    -rwxr-xr-x. 1 root root   8109 Dec 19  2017 jstack
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 jstat
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 jstatd
    -rwxr-xr-x. 1 root root   5110 Jan 14  2017 jvisualvm
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 keytool
    -rwxr-xr-x. 1 root root   7949 Dec 19  2017 native2ascii
    -rwxr-xr-x. 1 root root   8149 Dec 19  2017 orbd
    -rwxr-xr-x. 1 root root   7957 Dec 19  2017 pack200
    -rwxr-xr-x. 1 root root   7997 Dec 19  2017 policytool
    -rwxr-xr-x. 1 root root   7925 Dec 19  2017 rmic
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 rmid
    -rwxr-xr-x. 1 root root   7949 Dec 19  2017 rmiregistry
    -rwxr-xr-x. 1 root root   7957 Dec 19  2017 schemagen
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 serialver
    -rwxr-xr-x. 1 root root   7965 Dec 19  2017 servertool
    -rwxr-xr-x. 1 root root   8181 Dec 19  2017 tnameserv
    -rwxr-xr-x. 1 root root 231482 Dec 19  2017 unpack200
    -rwxr-xr-x. 1 root root   7941 Dec 19  2017 wsgen
    -rwxr-xr-x. 1 root root   7957 Dec 19  2017 wsimport
    -rwxr-xr-x. 1 root root   7957 Dec 19  2017 xjc
    ll /usr/java/jdk1.8.0_161/bin
    yang@cMaster:~]#ll /home/yang
    total 80
    drwxr-xr-x. 2 yang yang  4096 May 30 02:50 Desktop
    drwxr-xr-x. 2 yang yang  4096 May 14  2018 Documents
    drwxr-xr-x. 2 yang yang  4096 May 14  2018 Downloads
    -rw-rw-r--. 1 yang yang 11103 Jun  6  2018 log-pig-flume.txt
    -rw-rw-r--. 1 yang yang     0 Jun  6  2018 log-pig-flume.txt~
    -rw-rw-r--. 1 yang yang 30161 Jun  6  2018 log-proxy.txt
    drwxr-xr-x. 2 yang yang  4096 May 14  2018 Music
    drwxr-xr-x. 2 yang yang  4096 May 30 02:11 Pictures
    drwxr-xr-x. 2 yang yang  4096 May 14  2018 Public
    drwxr-xr-x. 2 yang yang  4096 May 14  2018 Templates
    drwxr-xr-x. 2 yang yang  4096 May 14  2018 Videos
    drwxrwxr-x. 4 yang yang  4096 Jul  5  2018 workspac
    ll /home/yang

      

    小结

      可见,我们经常使用的命令,如:reboot ,其完整的名称为“ /usr/bin/reboot ”,它的简化功劳得亏于profile配置文件和其他文件的组合应用。同时,profile配置文件主要用于登录设置的全系统环境和启动程序。如果profile配置文件出现问题会直接影响到图形界面的使用,但不影响字符界面的正常操作。

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  • 原文地址:https://www.cnblogs.com/Raodi/p/11623403.html
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