map lpr — The manual page for the lpr command that allows you to print files from the command line.

man lprm — The manual page for the command line utility to remove print jobs from the print queue.

man mpage — The manual page for the command line utility to print multiple pages on one sheet of paper.

man cupsd — The manual page for the CUPS printer daemon.

man cupsd.conf — The manual page for the CUPS printer daemon configuration file.

man classes.conf — The manual page for the class configuration file for CUPS.