Linux and Unix chfn command
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About chfn
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Enables a super user or root to modify a users information or enables a user who knows their password to change their information.
chfn [-f full_name] [-r room_no] [-w work_ph] [-h home_ph] [-o other] [user]
| -f full_name | Allows someone to change their full name on their account. |
| -r room_no | Allows someone to change their room number on their account. |
| -w work_ph | Allows someone to change their work phone number on their account. |
| -h home_ph | Allows someone to change their home phone number on their account. |
| -o other | Allows someone to change any other notes on their account. |
| user | The name of the user who is being changed. |
Tip: For these commands to work you must have super user rights, logged in as root, or know the password for the account currently logged into.
chfn
Running the command without any options will enable the user to change all the user information.
Note: If you're attempting to change the actual username and not just the description of the user see the vipw command.