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groupmod

NAME

groupmod - modify a group definition on the system

SYNOPSIS

groupmod [options] GROUP

DESCRIPTION

The groupmod modifies the definition of the specified GROUP by modifying the appropriate entry in the group database.

OPTIONS

The options which apply to the groupmod command are:

-g, --gid GID

Specify the new group ID for the GROUP. The numerical value of the GID must be a non-negative decimal integer. This value must be unique, unless the -o option is used. Values between 0 and 999 are typically reserved for system groups. Any files which the old group ID is the file group ID must have the file group ID changed manually.

-h, --help

Display help message and exit.

-n, --new-name NEW_GROUP

The name of the group will be changed from GROUP to NEW_GROUP name.

-o, --non-unique

When used with the -g option allow to change the group GID to non-unique value.

FILES

/etc/group

Group account information.

/etc/gshadow

Secure group account information.

EXIT VALUES

The groupmod command exits with the following values:

0

success

2

invalid command syntax

3

invalid argument to option

4

specified group doesn't exist

6

specified group doesn't exist

9

group name already in use

10

can't update group file

SEE ALSO

chfn(1), chsh(1), passwd(1), gpasswd(8), groupadd(8), groupdel(8), useradd(8), userdel(8), usermod(8).