How do I use Groupmod?
- Example-1: To change the group “newgroup” to “oldgroup”. # groupmod -n oldgroup newgroup. output:
- Example-2: To change groupid of group: # groupmod -g 777 oldgroup. output:
- Example-3: To use same gid for multiple groups, use -o option. #groupmod -g 777 newgroup. output: ( both oldgroup and newgroup have same GID’s)
How do I run a usermod command?
- Note: usermod command needs to be executed only as a root user.
- To add a comment for a user.
- To change the home directory of a user.
- To change the expiry date of a user.
- To change the group of a user.
- To change user login name.
What is sudo in Linux? sudo , which is an acronym for superuser do or substitute user do, is a command that runs an elevated prompt without a need to change your identity. Depending on your settings in the /etc/sudoers file, you can issue single commands as root or as another user.
How can I change UID in Linux? How do I make such change for belonging files and directories? First, assign a new UID to user using the usermod command. Second, assign a new GID to group using the groupmod command. Finally, use the chown and chgrp commands to change old UID and GID respectively.