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SunOS man pages : groupadd (1)

Maintenance Commands                                 groupadd(1M)


groupadd - add (create) a new group definition on the system


/usr/sbin/groupadd [ -g gid [ -o ] ] group


The groupadd command creates a new group definition on the system by adding the appropriate entry to the /etc/group file.


The following options are supported: -g gid Assigns the group id gid for the new group. This group id must be a non-negative decimal integer below MAXUID as defined in /usr/include/sys/param.h. The group ID defaults to the next available (unique) number above the highest number currently assigned. For example, if groups 100, 105, and 200 are assigned as groups, the next default group number will be 201. (Group IDs from 0-99 are reserved by SunOS for future applica- tions.) -o Allows the gid to be duplicated (non-unique).


The following operands are supported: group A string consisting of characters from the set of lower case alphabetic characters and numeric charac- ters. A warning message will be written if the string exceeds MAXGLEN, which is usually set at eight charac- ters. The group field must contain at least one char- acter; it accepts lower case or numeric characters or a combination of both, and must not contain a colon (:) or NEWLINE.


The following exit values are returned: 0 Successful completion. 2 Invalid command syntax. A usage message for the groupadd command is displayed. 3 An invalid argument was provided to an option. 4 The gid is not unique (when -o option is not used). 9 The group is not unique. SunOS 5.8 Last change: 27 Mar 1998 1 Maintenance Commands groupadd(1M) 10 The /etc/group file cannot be updated.


/etc/group /usr/include/userdefs.h


See attributes(5) for descriptions of the following attri- butes: ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |_____________________________|_____________________________| | Availability | SUNWcsu | |_____________________________|_____________________________|


users(1B), groupdel(1M), groupmod(1M), grpck(1M), logins(1M), pwck(1M), useradd(1M), userdel(1M), usermod(1M), group(4), attributes(5)


groupadd only adds a group definition to the local system. If a network name service such as NIS or NIS+ is being used to supplement the local /etc/group file with additional entries, groupadd cannot change information supplied by the network name service. However, groupadd will verify the uniqueness of group name and group ID against the external name service. SunOS 5.8 Last change: 27 Mar 1998 2