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3.5.3. Updating Group Authentication
The
gpasswd
command administers /etc/group
and /etc/gshadow
files. Note that this command works only if run by a group administrator.
Who is a group administrator? A group administrator can add and delete users as well as set, change, or remove the group password. A group can have more than one group administrator. The
root
user can add group administrators with the gpasswd -A users groupname
where users is a comma-separated list of existing users you want to be group administrators (without any spaces between commas).
For changing a group's password, run the
gpasswd
command with the relevant group name. You will be prompted to type the new password of the group.
gpasswd groupname
Example 3.20. Changing a Group Password
~]# gpasswd crowd Changing password for group crowd New password: Re-enter new password:
The password for the group
crowd
has been changed.
You can also remove the password from the named group by using the
-r
option.
gpasswd -r schoolmates