administer /etc/group and /etc/gshadow NAME gpasswd - administer /etc/group and /etc/gshadow SYNOPSIS gpasswd [ option ] group DESCRIPTION The gpasswd command is used to administer…change user password NAME passwd - change user password SYNOPSIS passwd [ options ] [ LOGIN ] DESCRIPTION The passwd command changes passwords for user accounts. A normal user may …PostgreSQL interactive terminal NAME psql - PostgreSQL interactive terminal SYNOPSIS psql [ option ...] [ dbname [ username ]] DESCRIPTION psql is a terminal-based front-end to Pos…