Overview
In this post, we will discuss Linux who command and whoami command. The first command is used to know who logged into the system. The second one is used to know who is currently working on the system respectively.
who command
who displays the user currently logged in to the computer screen. To display help and command line switches type
$ who –help
To know and learn all the command line options type:
$ man who
whoami command
whoami Linux command displays the current effective username to the computer screen. Sometimes when we switch users to another user using the su command. This command would be useful to know the effective username.
To know and learn all the command line options type:
$ man whoami
For example, if john logs into the system and switched to bob user account . who would display john and whoami would display bob.
Example
$ whoami testingdocs $ su oracle Password: $ whoami oracle $
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Linux Basic Commands Tutorial page:
https://www.testingdocs.com/linux-basic-commands-tutorial/
More Information on Ubuntu Linux:
https://ubuntu.com/