cancel

Cancel the current print job on the default printer

$ cancel

$ cancel [job_id]

$ cancel [printer_name]-[job_id]

$ cancel -a [printer_name]

$ cancel -a

$ cancel -u [username]

cancel [-E] [-U username] [-a] [-h hostname[:port]] [-u username] [-x] [id] [destination] [destination-id]

cancel is a CUPS command that cancels print jobs. Without arguments, it cancels the currently printing job on the default destination. Jobs can be specified by job ID, destination printer, or both.
Job IDs are assigned by the print system and can be viewed with lpstat. The destination-id format combines the printer name and job ID (e.g., "myprinter-42").

-a

Cancel all jobs on the specified destination, or all destinations if none specified

Force encryption when connecting to the server

Specify alternate server

Cancel jobs owned by the specified user

Specify the username for authentication

Delete job data files in addition to canceling

The -a and -u options require administrative privileges. These restrictions are controlled by operation policies in cupsd.conf for "Cancel-Jobs" and "Cancel-My-Jobs" operations.
CUPS printer names can contain any printable character except SPACE, TAB, "/", or "#", and are case-insensitive.

lpr(1), lprm(1), lpstat(1), lp(1)