GROUPADD(8)		  System Management Commands		   GROUPADD(8)



NAME
       groupadd - create a new group

SYNOPSIS
       groupadd [-g GID [-o]] [-f] [-K KEY=VALUE] group

DESCRIPTION
       The groupadd command creates a new group account using the values
       specified on the command line plus the default values from the system.
       The new group will be entered into the system files as needed.

OPTIONS
       The options which apply to the groupadd command are:

       -f
	   This option causes the command to simply exit with success status
	   if the specified group already exists. When used with -g, and the
	   specified GID already exists, another (unique) GID is chosen (i.e.
	   -g is turned off).

       -g GID
	   The numerical value of the group's ID. This value must be unique,
	   unless the -o option is used. The value must be non-negative. The
	   default is to use the smallest ID value greater than 999 and
	   greater than every other group. Values between 0 and 999 are
	   typically reserved for system accounts.

       -h, --help
	   Display help message and exit.

       -K KEY=VALUE
	   Overrides /etc/login.defs defaults (GID_MIN, GID_MAX and others).
	   Multiple -K options can be specified.

	   Example: -K GID_MIN=100
	    -K GID_MAX=499

	   Note: -K GID_MIN=10,GID_MAX=499 doesn't work yet.

       -o
	   This option permits to add a group with a non-unique GID.

FILES
       /etc/group
	   Group account information.

       /etc/gshadow
	   Secure group account information.

       /etc/login.defs
	   Shadow password suite configuration.

CAVEATS
       Groupnames must begin with a lower case letter or an underscore, and
       only lower case letters, underscores, dashes, and dollar signs may
       follow. In regular expression terms: [a-z_][a-z0-9_-]*[$]

       If the groupname already exists in an external group database such as
       NIS, groupadd will deny the group creation request.

       Groupnames may only be up to 16 characters long.

EXIT VALUES
       The groupadd command exits with the following values:

       0
	   success

       2
	   invalid command syntax

       3
	   invalid argument to option

       4
	   GID not unique (when -o not used)

       9
	   group name not unique

       10
	   can't update group file

SEE ALSO
       chfn(1), chsh(1), passwd(1), gpasswd(8), groupdel(8), groupmod(8),
       login.defs(5), useradd(8), userdel(8), usermod(8).



System Management Commands	  10/28/2007			   GROUPADD(8)