The text discusses 10 PostgreSQL psql meta-commands that can make working with the command line tool easier. These include \d for describing relations, \e for editing query buffers, \x for toggling expanded output, and \timing for timing commands. Other useful commands mentioned are \c for connecting to a database, \copy for performing SQL copy operations, \i for reading SQL commands from a file, and \? for displaying all available meta-commands. The text also briefly mentions other tools like pgAdmin and DataGrip for interacting with PostgreSQL databases.