Linux命令(115)之whoami

linux命令之whoami

1.whoami介绍

linux命令whoami是用来显示当前会用用户名称

2.whoami用法

whoami [参数]

3.实例

3.1.显示帮助信息

命令：

whoami --help

[root@rhel77 ~]# whoami --help
Usage: whoami [OPTION]...
Print the user name associated with the current effective user ID.
Same as id -un.
 
      --help     display this help and exit
      --version  output version information and exit
 
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
For complete documentation, run: info coreutils 'whoami invocation'
[root@rhel77 ~]# 

3.2.显示版本信息

命令：

whoami --version

[root@rhel77 ~]# whoami --version
whoami (GNU coreutils) 8.22
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
 
Written by Richard Mlynarik.
[root@rhel77 ~]# 

3.3.显示当前会话用户名称

命令：

whoami

[root@rhel77 ~]# whoami
root
[root@rhel77 ~]# 

等价于

id -un

[root@rhel77 ~]# id -un
root
[root@rhel77 ~]#