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

[[email protected] zzz]# alias zzz=‘ll‘

[[email protected] zzz]#

[[email protected] zzz]# ls

aaa zlm

[[email protected] 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

[[email protected] zzz]# ls

aaa zlm

[[email protected] zzz]#

[[email protected] zzz]# unalias zzz

[[email protected] zzz]# zzz

bash: zzz: command not found...