alias

一、作用

给命令定义别名

二、选项

语法：alias [name[=value]]

三、实例

[root@localhost ~]# alias vimens33="vim /etc/sysconfig/network-scripts/ifcfg-ens33"
[root@localhost ~]# vimens33 
  1 TYPE=Ethernet
  2 PROXY_METHOD=none
  3 BROWSER_ONLY=no
  4 BOOTPROTO=static
  5 DEFROUTE=yes
  6 IPV4_FAILURE_FATAL=no
  7 IPV6INIT=yes
  8 IPV6_AUTOCONF=yes
  9 IPV6_DEFROUTE=yes
 10 IPV6_FAILURE_FATAL=no
 11 IPADDR=192.168.11.101
 12 NETMASK=255.255.255.0
 13 GATEWAY=192.168.11.254
 14 NAME=ens33
 15 DEVICE=ens33
 16 ONBOOT=yes

[root@localhost ~]# alias
alias cp='cp -i'
alias egrep='egrep --color=auto'
alias fgrep='fgrep --color=auto'
alias grep='grep --color=auto'
alias ll='ls -l --color=auto'
alias mv='mv -i'
alias rm='rm -i'
alias vimens33='vim /etc/sysconfig/network-scripts/ifcfg-ens33'
alias which='alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde'

[root@localhost ~]# alias
alias lk='ls -l'
...
[root@localhost ~]# unalias lk
[root@localhost ~]# alias
alias vimens33='vim /etc/sysconfig/network-scripts/ifcfg-ens33'