whoami

Print the name corresponding to the currently valid user ID

Summary

whoami [OPTION]...

The main purpose

• Print the name corresponding to the currently valid user ID.

Options

--help Display help information and exit.
--version Display version information and exit.

return value

Returning 0 indicates success, returning a non-zero value indicates failure.

example

[root@localhost ~]# whoami
root

Notice

1. This command is equivalent to id -un.

2. Pay attention to distinguishing the two commands whoami and logname; for example, we opened the terminal as user root and then switched to user user2. At this time, whoami returns the current user user2, and logname returns root. You can verify it by yourself.

3. This command is a command in the GNU coreutils package. For related help information, please see man -s 1 whoami, info coreutils 'whoami invocation'.