一天一条Linux指令-apropos

用途说明

因为Linux的Shell中使用的是命令行方式，有时候会忘记执行特定任务的命令，就可以使用apropos找出来。等同于man -k，在使用的时候还是觉得用man -k来的好，毕竟apropos这个命令有些难记。

此命令需要指定一个keyword作为参数，查找与该keyword有关的命令。手册页中的解释是：在whatis数据库中搜索字符串。search the whatis database for strings。

 

常用参数

无。

命令格式为：apropos keyword

等同于：man -k keyword

使用示例

示例一

[root@web ~]# apropos who 
at.allow [at]        (5)  - determine who can submit jobs via at or batch
at.deny [at]         (5)  - determine who can submit jobs via at or batch
jwhois               (1)  - client for the whois service
jwhois              (rpm) - Internet whois/nicname client.
w                    (1)  - Show who is logged on and what they are doing
who                  (1)  - show who is logged on
who                  (1p)  - display who is on the system
whoami               (1)  - print effective userid

[root@web ~]# man -k who 
at.allow [at]        (5)  - determine who can submit jobs via at or batch
at.deny [at]         (5)  - determine who can submit jobs via at or batch
jwhois               (1)  - client for the whois service
jwhois              (rpm) - Internet whois/nicname client.
w                    (1)  - Show who is logged on and what they are doing
who                  (1)  - show who is logged on
who                  (1p)  - display who is on the system
whoami               (1)  - print effective userid

从以上输出来看，apropos和man -k的输出是相同的。