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How to modify a Linux user using usermod command

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The usermod command can also be used to modify options for an existing user with the usermod <options> <username> command. Most of the useradd options from the above table can be used with usermod. Some of the additional options are given in the below table.



-l <loginname>

Change the user’s username to <loginname>. You should consider changing the user’s home directory and name of the user private group to reflect username change.


 Lock the user. User can no longer log in to the system with the old password.


Unlock the user’s password so the user can log in to the system again.

              Jajish Thomason Google+
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