Last login, shutdown, reboot history in Unix, Linux, MAC

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Command for last reboot and shutdown.

Last Rebbot, Shutdown and login information with date and time.
$ last

Last Rebbot Information with date and time
$ last reboot 

Last Shutdoan Information with date and time
$ last shutdown

Last Rebbot Information for top Five with date and time
$ last reboot | head -5

Last Shutdown Information for top Four with date and time
$ last shutdown | head -4

Insert Login “Username” after last login syntex. I wil come all login information for “username”
$ last login “username”

nsert Login “Username” after last login syntex and also insert head -6.
It mean login username information will come top 6 history
$ last login {username} | head -6

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