Printing is not an involved process whether you click on a button in a GUI or
type commands from the command line. But you can cancel print jobs or view
jobs in the print queue very quickly by typing a few short commands.
The lpr command followed by a filename sends that
file to the print queue, for example lpr foo.txt
prints the foo.txt file.
To view the jobs waiting in the print queue, just type
lpq at the command line. You can cancel jobs in the
queue by typing lprm followed by the print job
number. Get the job number from the print queue. Type
lpq, and you will see information similar to this:
In this example, 389 is the job number. To cancel this print job, you would type
lprm 389 and press [Enter].