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Who command syntax in Linux?
The who command displays the following information for each user currently logged in to the system if no option is provided :
- Login name of the users.
- Terminal line numbers.
- Login time of the users in to system.
- Remote host name of the user.
Why do we require who command?
The who command displays information about all users currently on the local system. The following information is displayed: login name, tty, date and time of login. Typing who am i or who am I displays your login name, tty, date and time you logged in.
