osx man page for cancel

cancel(1)							    Apple Inc.								 cancel(1)

NAME
       cancel - cancel jobs

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

DESCRIPTION
       cancel cancels existing print jobs. The -a option will remove all jobs from the specified destination.

OPTIONS
       The following options are recognized by cancel:

       -E
	    Forces encryption when connecting to the server.

       -U username
	    Specifies the username to use when connecting to the server.

       -a
	    Cancel all jobs on the named destination, or all jobs on all destinations if none is provided.

       -h hostname[:port]
	    Chooses an alternate server.

       -u username
	    Cancels jobs owned by username.

       -x
	    Deletes job data files in addition to canceling.

COMPATIBILITY
       Unlike  the  System  V printing system, CUPS allows printer names to contain any printable character except SPACE, TAB, "/", or "#".  Also,
       printer and class names are not case-sensitive.

NOTES
       Administrators wishing to prevent unauthorized cancellation of jobs via the -u option should require authentication for Cancel-Jobs  opera-
       tions in cupsd.conf(5).

SEE ALSO
       lp(1), lpmove(8), lpstat(1),
       http://localhost:631/help

COPYRIGHT
       Copyright 2007-2013 by Apple Inc.

21 January 2013 						       CUPS								 cancel(1)