What are the most common user management commands?

The most common user management commands in Linux include:

1. Add a new user:

   sudo adduser username

2. Delete a user:

   sudo deluser username

3. Modify a user:

   sudo usermod options username

4. Change a user's password:

   sudo passwd username

5. View user information:

   id username

6. List all users:

   cat /etc/passwd

7. Add a user to a group:

   sudo usermod -aG groupname username

8. Remove a user from a group:

   sudo gpasswd -d username groupname

9. Lock a user account:

   sudo usermod -L username

10. Unlock a user account:

    sudo usermod -U username

These commands are essential for managing user accounts, their permissions, and overall system security in a Linux environment.