env 命令使用

[root@hs21p-t /]# env | grep ORA
ORACLE_SID=myora
ORACLE_HOME=/opt/app/oracle/orabase/product/11.1.0
[root@hs21p-t /]# cd $ORACLE_HOME
[root@hs21p-t 11.1.0]# ls
apex         clone   dbs             install           jdbc md       odbc         ord    precomp    slax          uix
assistants   config demo            install.platform jdk   mesg     olap         oui    racg       sqldeveloper ultrasearch
bin          crs     diagnostics     instantclient     jlib mgw      OPatch       owb    rdbms      sqlj          wwg
ccr          csmig   has             inventory         ldap network opmn         owm    relnotes   sqlplus       xdk
cdata        css     hs              j2ee              lib   nls      oracore      perl   root.sh    srvm
cfgtoollogs ctx     hs21p-t_stasun javavm            log   oc4j     oraInst.loc plsql scheduler sysman
[root@hs21p-t 11.1.0]# cd bin
[root@hs21p-t bin]# ls

dropjava                    hsallociO             nmuct                 racgmainO
[root@hs21p-t bin]# dbca
DISPLAY not set.
Set DISPLAY environment variable, then re-run.
[root@hs21p-t bin]# export DISPLAY=172.18.41.166:0.0
[root@hs21p-t bin]# env
REMOTEHOST=172.18.41.166
HOSTNAME=hs21p-t
TERM=vt100
SHELL=/bin/bash
HISTSIZE=1000
OLDPWD=/opt/app/oracle/orabase/product/11.1.0
QTDIR=/usr/lib/qt-3.3
USER=root
LS_COLORS=no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=01;32:*.cmd=01;32:*.exe=01;32:*.com=01;32:*.btm=01;32:*.bat=01;32:*.sh=01;32:*.csh=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.bz=01;31:*.tz=01;31:*.rpm=01;31:*.cpio=01;31:*.jpg=01;35:*.gif=01;35:*.bmp=01;35:*.xbm=01;35:*.xpm=01;35:*.png=01;35:*.tif=01;35:
ORACLE_SID=myora
KDEDIR=/usr
PATH=/usr/kerberos/sbin:/usr/kerberos/bin:/usr/java/jdk1.5.0_18/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin:.
MAIL=/var/spool/mail/root
PWD=/opt/app/oracle/orabase/product/11.1.0/bin
INPUTRC=/etc/inputrc
LANG=en_US.UTF-8
SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass
HOME=/root
SHLVL=2
LOGNAME=root
LESSOPEN=|/usr/bin/lesspipe.sh %s
DISPLAY=172.18.41.166:0.0
ORACLE_HOME=/opt/app/oracle/orabase/product/11.1.0
G_BROKEN_FILENAMES=1
_=/bin/env
[root@hs21p-t bin]# env | grep DISPLAY
DISPLAY=172.18.41.166:0.0
[root@hs21p-t bin]# dbca
[root@hs21p-t bin]#