How to print a PS file?
Evince is the default program for postscript files. To print a file from evince, select print from file menu and select the appropriate printer. You can also use the the program gv for postscript files (it works for pdf files too). To print from gv, select print marked to print the current page or print all to print the whole document. In the print command dialog box, enter lpr -Pprinter_name. You can just enter lpr if you want to use the default printer.