命令定义别名

如何定义一个命令的别名，如何在命令中引导另一个命令的执行结果

命令：alias
语法：alias zzz=‘ll’
例子：
创建别名

 

2016-09-25_16-46-29.png

 

[root@foundation0 zzz]# alias zzz='ll'
[root@foundation0 zzz]#
[root@foundation0 zzz]# ls
aaa zlm
[root@foundation0 zzz]# zzz
total 0
drwxr-xr-x. 2 root root 6 Sep 26 00:03 aaa
-rw-r--r--. 1 root root 0 Jul 25 2017 zlm

删除别名

 

2016-09-25_16-49-20.png

[root@foundation0 zzz]# ls
aaa zlm
[root@foundation0 zzz]#
[root@foundation0 zzz]# unalias zzz
[root@foundation0 zzz]# zzz
bash: zzz: command not found...