Examples of gpasswd Command

Creating a group and adding a user to it. After that deleting the user.

• Adding a group named as geeks.

  $ sudo groupadd geeks

  adding group name

• To display the created group with their id you can use:

  $cat /etc/group

  listing groups

• Now the group geeks is added so now execute command under to add the user to group geeks:

  $ sudo gpasswd -a umang geeks

• Deleting the created user from group geeks.

  $ sudo gpasswd -d umang geeks

gpasswd command is used to administer the /etc/group and /etc/gshadow. As every group in Linux has administrators, members, and a password. It is an inherent security problem as more than one person is permitted to know the password. However, groups can perform co-operation between different users. This command assigns a user to a group with some security criteria. This command is called by a group administrator with a group name only which prompts for the new password of the group. System administrators can use the -A option to define group administrator(s) and -M option to define members. They have all the rights of the group administrators and members.