dropuser 1 Application dropuser remove a PostgreSQL user account dropuser option username dropuser removes an existing PostgreSQL user and the databases which that user owned. Only superusers (users with usesuper set in the pg_shadow table) can destroy PostgreSQL users. dropuser is a shell script wrapper around the SQL command . Thus, there is nothing special about removing users via this or other methods. This means that a database server is running at the targeted host. Also, any default settings and environment variables used by the libpq front-end library do apply. dropuser accepts the following command-line arguments: username Specifies the name of the PostgreSQL user to be removed. You will be prompted for a name if none is specified on the command line. -e --echo Echo the commands that dropuser generates and sends to the server. -i --interactive Prompt for confirmation before actually removing the user. -q --quiet Do not display a response. createuser also accepts the following command-line arguments for connection parameters: -h host --host host Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket. -p port --port port Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections. -U username --username username User name to connect as (not the user name to drop) -W --password Force password prompt (to connect to the server, not for the password of the user to be dropped). PGHOST PGPORT PGUSER Default connection parameters DROP USER All is well. dropuser: deletion of user "username" failed Something went wrong. The user was not removed. If there is an error condition, the backend error message will be displayed. See and for possibilities. To remove user joe from the default database server: $ dropuser joe DROP USER To remove user joe using the server on host eden, port 5000, with verification and a peek at the underlying command: $ dropuser -p 5000 -h eden -i -e joe User "joe" and any owned databases will be permanently deleted. Are you sure? (y/n) y DROP USER "joe" DROP USER