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Commands Reference, Volume 4

rmgroup Command


Removes a group.


rmgroup [ -R load_module ] Name


The rmgroup command removes a group specified by the Name parameter. This command deletes all the group attributes as well. To remove a group, the group name must already exist as a string of 8 bytes or less. Users who are group members are not removed from the system.

If the group is the primary group for any user, you cannot remove it unless you redefine the user's primary group with the chuser command. The chuser command alters the /etc/passwd file. Only the root user or a user with GroupAdmin authorization can remove an administrative group or a group with administrative users as members.

For groups that were created with an alternate Identification and Authentication (I&A) mechanism, the -R flag can be used to specify the I&A load module used. Load modules are defined in the /usr/lib/security/methods.cfg file.

You can use the Users application in Web-based System Manager (wsm) to change user characteristics.

You could also use the System Management Interface Tool (SMIT) smit rmgroup fast path to run this command.


-R load_module Specifies the loadable I&A module used to remove a group.


Access Control: This command should grant execute (x) access only to the root user and members of the security group. This command should be installed as a program in the trusted computing base (TCB). The command should be owned by the root user with the setuid (SUID) bit set.

Files Accessed:

Mode File
r /etc/passwd
rw /etc/group
rw /etc/security/group

Auditing Events:

Event Information
GROUP_Remove group


Removing a group may not be supported by all loadable I&A modules. If the loadable I&A module does not support removing a group, an error is reported.


  1. To remove the finance group, type:

    rmgroup finance
  2. To remove the LDAP I&A loadable module group monsters, type:

    rmgroup -R LDAP monsters


/usr/sbin/rmgroup Contains the rmgroup command.
/etc/group Contains the basic attributes of groups.
/etc/security/group Contains the extended attributes of groups.

Related Information

The chfn command, chgrpmem command, chsh command, chgroup command, chuser command, lsgroup command, lsuser command, mkgroup command, mkuser command, passwd command, pwdadm command, rmuser command, setgroups command, setsenv command.

Security Administration in AIX 5L Version 5.1 System Management Guide: Operating System and Devices.

For information on installing the Web-based System Manager, see Chapter 2: Installation and System Requirements in AIX 5L Version 5.1 Web-based System Manager Administration Guide.

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