Unix for Beginners
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gpasswd - Unix, Linux Command
gpasswd - administer the /etc/group file
gpasswd -a user group
gpasswd -d user group
gpasswd -R group
gpasswd -r group
gpasswd [-A user,...] [-M user,...] group
is used to administer the
file if compiled with SHADOWGRP defined). Every group can have administrators, members and a password. System administrator can use
option to define group administrator(s) and
option to define members and has all rights of group administrators and members.
Notes about group passwords
Group passwords are an inherent security problem since more than one person is permitted to know the password. However, groups are a useful tool for permitting co-operation between different users.
Group administrator can add and delete users using
options respectively. Administrators can use
option to remove group password. When no password is set only group members can use
to join the group. Option
disables access via a password to the group through
command (however members will still be able to switch to this group).
called by a group administrator with group name only prompts for the group password. If password is set the members can still
without a password, non-members must supply the password.
Group account information.
Secure group account information.