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# Linux groupadd Command [ Linux Command Manual](#) 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: * /etc/group: Group account information. * /etc/gshadow: Secure group account information. * /etc/login.defs: Shadow password suite configuration. ### Syntax The syntax format for the groupadd command is as follows: groupadd [-g gid ] group **Parameter Description:** * -g: Specify the **id** for the new group; * -r: Create a system group, with a group ID less than 500; * -K: Override 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 cause the command to exit with a success status. When used with -g, and the specified GID_MIN already exists, another unique GID is selected (i.e., -g is disabled). ### Example Create a new group and add a group ID. #groupadd -g 344 At this time, an entry with group ID (GID) 344 is created in the /etc/group file. [ Linux Command Manual](#)