whack - mangle requests to a printer or damage a printer
whack [-h | -v] [-i] [-w] ids
whack [-j] [-v] [-s] [-w] printers
whack mangles line printer requests or damages line
printers. When the first form of the command is used, the printed output of
the job is mangled as specified by the options. When the second form of the
command is used, the printer itself is damaged as specified by the
options.
- -h
- Horizontal. Make the output run across the page horizontally, ignoring
linefeeds and other form movement characters or embedded commands.
- -v
- Vertical. Make the output run vertically in one column (the current
column) down the paper, ignoring any form movement characters or embedded
commands.
- -i
- ISO mode. Select, at random, a different ISO code set to use while
printing the rest of the job.
- -w
- Write a taunting message on the user's terminal after the jobs have been
whacked. If the user is not logged in locally, then mail will be sent
instead.
- -j
- Jam. Self-explanitory.
- -v
- Voltage surge. Send a voltage spike down the transmit lead(s) of the
printer. Physical contact with the printer should be avoided while using
the -v option.
- -s
- Spit. Causes the printer to rapidly eject it's paper load into the output
bin. Depending upon the speed of the ejection, a few characters could
actually print on each page.
Written by Eric L. Pederson <eric@bofh.org.uk>.