. To print a file use the command: lpr filename . The job is placed in the print queue and you can carry on working. Examples . Did You Know . Using a different printer . Printing multiple copies . Examining the print queue . Cancelling a print request . Some versions of UNIX provide both an lp and an lpr command for printing files; other versions support only one or the other. If the lpr command is not available on your system use the lp command instead.