gpasswd:tldr:ed2ce

The command "gpasswd ${group}" is used to modify the password or manage the members of a group in Linux/Unix.

Here, ${group} is a placeholder for the name of the group you want to modify.

When the command is executed, it will prompt you for the group password. Once you've provided the correct password, you can perform various actions depending on the options provided. Some common options include:

• "-a username": Adds a user to the specified group.
• "-d username": Removes a user from the specified group.
• "-M username1,username2,...": Sets the members of the group, replacing the existing members with the provided list.

For example, if you want to add a user named "john" to a group named "developers", you would execute the following command:

gpasswd developers -a john

Note: You need to have sufficient privileges (usually root/sudo access) to run this command and modify group membership or passwords.