groupadd 8 groupadd Create a new group groupadd -g gid -o -f -K KEY=VALUE group The groupadd command creates a new group account using the values specified on the command line and the default values from the system. The new group will be entered into the system files as needed. The options which apply to the groupadd command are: -f This option causes to just exit with success status if the specified group already exists. With -g, if specified gid already exists, other (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. -K KEY=VALUE Overrides /etc/login.defs defaults (GID_MIN, GID_MAX and others). Multiple -K options can be specified, e.g.: -K GID_MIN=100 -K GID_MAX=499 Note: -K GID_MIN=10,GID_MAX=499 doesn't work yet. -o Allow add group wit non-unique GID. /etc/group group account information /etc/gshadow secure group account information 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 chfn1 , chsh1 , passwd1 , gpasswd8 , groupdel8 , groupmod8 , useradd8 , userdel8 , usermod8 Julianne Frances Haugh (jockgrrl@ix.netcom.com)