Control the line printers
lprc [command [argument ...]]
Neutrino
None.
The system administrator (i.e. root) uses the lprc
utility to control the operation of the line printers that are configured
in /etc/printcap.
You can use lprc to:
- disable or enable a printer
- disable or enable a printer's spooling queue
- rearrange the order of jobs in a spooling queue
- find the status of printers, and their associated
spooling queues and printer daemons.
Without any arguments, lprc prompts for
commands from the standard input. If arguments are supplied,
lprc interprets the first argument as a command
and the remaining arguments as parameters to the command.
You can redirect standard input so that lprc
reads commands from file. You can abbreviate the commands.
Here's a list of recognized commands:
- ? [command ...]
help [command ...]
- Print a short description of each command specified in
the argument list.
If you don't specify a command, lprc displays a
list of the recognized commands.
- abort { all | printer }
- Terminate an active spooling daemon on the local host
immediately and then disable printing (preventing new
daemons from being started by lpr) for the
specified printers.
- clean { all | printer }
- Remove any temporary files, data files, and control
files that can't be printed (i.e. that don't form a complete
printer job) from the specified printer queue(s) on the
local machine.
- disable { all | printer }
- Turn the specified printer queues off. This prevents lpr
from adding new to the queue.
- down { all | printer } message ...
- Turn the specified printer queue off, disable printing,
and put message in the printer status file. The
message doesn't need to be quoted; the remaining arguments
are treated like echo.
You normally use the down to take a
printer down, let others know why lprq
indicates the printer is down, and print the status message.
- enable { all | printer }
- Enable spooling on the local queue for the listed
printers. This lets lpr put new jobs in
the spool queue.
- exit
quit
- Exit from lprc.
- restart { all | printer }
- Attempt to start a new printer daemon. This is useful
when some abnormal condition causes the daemon to die
unexpectedly, leaving jobs in the queue. The lprq
utility reports that no daemon is present when
this condition occurs. If the user is the superuser, try to
abort the current daemon first (i.e. kill and restart a
“stuck” daemon).
- start { all | printer }
- Enable printing and start a spooling daemon for the
listed printers.
- status [all | printer]
- Display the status of daemons and queues. If you don't specify a printer,
lprc displays the status of all printers defined in the
/etc/printcap file.
- stop { all | printer }
- Stop a spooling daemon after the current job completes
and disable printing.
- topq printer [jobnum ... ] [user ... ]
- Place the jobs in the order listed at the top of the printer queue.
- up { all | printer }
- Enable everything and start a new printer daemon.
This command undoes
the effects of down.
- /etc/printcap
- Printer description file.
- ?Ambiguous command
- Abbreviation matches more than one command.
- ?Invalid command
- No match was found.
- ?Privileged command
- The command can be executed only by root.
lpd,
lpr,
lprq,
lprrm,
/etc/printcap
Printing
in the Neutrino User's Guide