1. Direct with export command:
#export path= $PATH:/opt/au1200_rm/build_tools/bin
To see if it is already set up, use the command export to view:
[Email protected] bin]#Export
Declare-x bash_env= "/ROOT/.BASHRC"
Declare-x g_broken_filenames= "1"
Declare-x histsize= "1000"
Declare-x home= "/root"
Declare-x hostname= "Localhost.localdomain"
Declare-x inputrc= "/ETC/INPUTRC"
Declare-x lang= "ZH_CN. GB18030 "
Declare-x language= "Zh_CN.GB18030:zh_CN.GB2312:zh_CN"
Declare-x lessopen= "|/usr/bin/lesspipe.sh%s"
Declare-x logname= "Root"
Declare-x 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: "
Declare-x mail= "/var/spool/mail/root"
Declare-x oldpwd= "/opt/au1200_rm/build_tools"
Declare-x path= "/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/x11r6/bin:/root/bin:/opt/ Au1200_rm/build_tools/bin "
Declare-x pwd= "/opt/au1200_rm/build_tools/bin"
Declare-x shell= "/bin/bash"
Declare-x shlvl= "1"
Declare-x ssh_askpass= "/usr/libexec/openssh/gnome-ssh-askpass"
Declare-x ssh_auth_sock= "/tmp/ssh-xx3lkwhz/agent.4242"
Declare-x ssh_client= "10.3.37.152 2236 22"
Declare-x ssh_connection= "10.3.37.152 2236 10.3.37.186 22"
Declare-x ssh_tty= "/DEV/PTS/2"
Declare-x term= "Linux"
Declare-x user= "Root"
Declare-x username= "Root"
As you can see, the environment variable is already set, and the path of the compiler that I want to add is already in path.
2. Add a directory to the environment variable
Export path= $PATH:/gpfs01/softwares/scripts/universal
This allows you to use the script file in this directory directly
Add an environment variable under Linux or add a directory to the environment variable