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groupmod

Modify a group definition on the system

command User ManagementAdministrationSecurity

Overview

The groupmod command modifies the definition of the specified group. It changes group attributes like GID, name, or password.

Syntax

groupmod [OPTION]... GROUP_NAME

Common Options

-g GID, --gid GID

Change the group ID to GID. The GID must be a non-negative integer. This value must be unique, unless the -o option is used.

-o, --non-unique

Allow the group GID to be non-unique (used with -g).

-n NEW_GROUP_NAME, --new-name NEW_GROUP_NAME

Change the group name to NEW_GROUP_NAME.

-p PASSWORD, --password PASSWORD

Change the group's encrypted password to PASSWORD. Note: This option is generally not recommended as group passwords are rarely used on modern Linux systems.

Examples

$ sudo groupmod -n new_developers old_developers

Renames the group old_developers to new_developers.

$ sudo groupmod -g 1010 editors

Changes the GID of the editors group to 1010.

$ sudo groupmod -g 1011 -o devteam

Changes the GID of devteam to 1011, even if GID 1011 is already in use.

Related Commands

chmod

Change file mode bits (permissions)

chown

Change file owner and group

sudo

Execute a command as another user (superuser)

useradd

Create a new user or update default new user information

usermod

Modify a user account

userdel

Delete a user account and related files

groupaccountmodifychangepermissionsgroupmod