設置命令別名對所有用戶生效

[root@centos ~]# echo "alias catfs='cat /etc/fstab'" >> /etc/bashrc

[root@centos ~]# source /etc/bashrc

[root@centos ~]# alias

alias catfs='cat /etc/fstab'

alias egrep='egrep --color=auto'

...

[root@centos ~]# useradd user

[root@centos ~]# su - user

[root@centos ~]$ alias

alias catfs='cat /etc/fstab'

alias egrep='egrep --color=auto'

...