Linux 查看操作系统版本信息 uname

Linux 查看操作系统版本信息 uname

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uname 命令用于显示当前系统的版本信息。

带 -a 选项的 uname 命令会给出当前操作系统的所有有用信息。

命令如下：

[root@node1 /]# uname -a
Linux node1 3.10.0-693.el7.x86_64 #1 SMP Tue Aug 22 21:09:27 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

执行效果如下：

可以使用 -r 选项，只查看操作系统的内核信息。

[root@node1 /]# uname -r
3.10.0-693.el7.x86_64

效果如下：

额外补充

uname 命令的使用说明如下（可以使用 man uname 命令查看使用手册）：

UNAME(1)                                                                               User Commands                                                                              UNAME(1)

NAME
       uname - print system information

SYNOPSIS
       uname [OPTION]...

DESCRIPTION
       Print certain system information.  With no OPTION, same as -s.

       -a, --all
              print all information, in the following order, except omit -p and -i if unknown:

       -s, --kernel-name
              print the kernel name

       -n, --nodename
              print the network node hostname

       -r, --kernel-release
              print the kernel release

       -v, --kernel-version
              print the kernel version

       -m, --machine
              print the machine hardware name

       -p, --processor
              print the processor type or "unknown"

       -i, --hardware-platform
              print the hardware platform or "unknown"

       -o, --operating-system
              print the operating system

       --help display this help and exit

       --version
              output version information and exit

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report uname translation bugs to <http://translationproject.org/team/>

AUTHOR
       Written by David MacKenzie.

COPYRIGHT
       Copyright ? 2013 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       arch(1), uname(2)

       The full documentation for uname is maintained as a Texinfo manual.  If the info and uname programs are properly installed at your site, the command

              info coreutils 'uname invocation'

       should give you access to the complete manual.

 如果是 CentOS 操作系统，可以使用如下命令查看版本信息：

[root@node1 /]# cat /etc/redhat-release 
CentOS Linux release 7.4.1708 (Core) 

效果如下：