Q. How do I change the userid or Login name in Linux?
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A. Use usermod command which modifies the system account files to reflect the changes that are specified on the command line.
You need to pass -l option as follows to usermod command:
usermod –l NEW_LOGIN_NAME old_login_name
Where,
- -l : The name of the user will be changed from old_login_name to NEW_LOGIN_NAME. Nothing else is changed. In particular, the users home directory name should probably be changed to reflect the new login name.
- NEW_LOGIN_NAME : New Login name/user-id
- old_login_name : Old login name/user-id
An example
For example, change the userid vivek to new id called sradmin. You need to type the following command:
# usermod -l sradmin vivek
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