usermod

Please demontrate 10 examples of using the usermod command on a Fedora GNU/Linux computer system.

Certainly! Here are 10 examples of using the usermod command on a Fedora GNU/Linux system:

1. Add a user to an additional group:

   usermod -aG groupname username

2. Change a user's login shell:

   usermod -s /bin/bash username

3. Lock a user's account (disable login):

   usermod -L username

4. Unlock a previously locked user account:

   usermod -U username

5. Set the expiration date for a user account:

   usermod -e YYYY-MM-DD username

6. Add a specific home directory for a user:

   usermod -d /path/to/new/home username

7. Change a user's primary group:

   usermod -g groupname username

8. Restrict a user's login shell to a specific command:

   usermod -s /sbin/nologin username

9. Set a user's password to expire and force them to change it on next login:

   usermod -e 0 username

10. Change a user's username:

    usermod -l newusername username

Remember to replace "groupname," "username," and "/path/to/new/home" with actual values relevant to your system. Additionally, exercise caution when modifying user accounts to avoid unintended consequences.