Shulou(Shulou.com)06/02 Report--

There are two ways to set environment variables:

1./ etc/profile

2. /etc/profile.d

Here, I mainly talk about the second type./etc/profile.d is a folder, and the variables set in it are effective for all users, and here are some script files.

Use the script to display the relevant information of the current login user and the current directory information:

Script name: show_tittle.sh

#eth0_ip=`/sbin/ifconfig eth0|grep "inet addr"|awk '{print $2}'|cut -d: -f2`eth0_ip=`/sbin/ifconfig | grep -w "inet" | egrep -v "(inet addr:|inet )(172\.16|127\.0\.0\.1)"|awk '{print $2}'|cut -d: -f2`PS1="\n\e[0;37m[\e[m\e[1;32m\u\e[m\e[1;33m@\e[m${eth0_ip} \e[35;1m\H\e[0m]: \w\n\$?> "export PS1---------------------

And then source environment variables.

Effect:

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.