Linux groupadd Command

The groupadd command is used to create a new group. The information of the new group will be added to the system files.

Related Files:

The syntax for the groupadd command is as follows:

groupadd [-g gid [-o]] [-r] [-f] group

Parameter Description:

-g: Specify the id of the new group;
-r: Create a system group, the group ID of the system group is less than 500;
-K: Overwrite the configuration file /etc/login.defs;
-o: Allow adding a group with a non-unique group ID.
-f, --force: If the specified group already exists, this option will fail silently and exit with a success status. When used with -g, and the specified GID_MIN already exists, another unique GID will be selected (i.e., -g is turned off).

Create a new group and add a group ID.

# groupadd -g 344 tutorialpro

This will create a group with a group ID (GID) of 344 in the /etc/group file.