Which of the following will flush all print jobs on all configured queues of the system?
A.
lprm -a all
B.
lprm -all
C.
lprm -a *
D.
lpflush -all
Explanation/Reference:
from the man pages:
lprm – remove jobs from the line printer spooling queue
SYNOPSIS
lprm [ -a ] [ -A ] [ -Ddebugopt ] [ -Pprinter ] [ -V ] [ -Uuser ] [ jobid… ] [ all ]
-a Remove files from all spool queues available to the user.