lpc(8) [bsd man page]
LPC(8) System Manager's Manual LPC(8) NAME
lpc - line printer control program SYNOPSIS
/usr/sbin/lpc [ command [ argument ... ] ] DESCRIPTION
Lpc is used by the system administrator to control the operation of the line printer system. For each line printer configured in /etc/printcap, lpc may be used to: o disable or enable a printer, o disable or enable a printer's spooling queue, o rearrange the order of jobs in a spooling queue, o find the status of printers, and their associated spooling queues and printer dameons. Without any arguments, lpc will prompt for commands from the standard input. If arguments are supplied, lpc interprets the first argument as a command and the remaining arguments as parameters to the command. The standard input may be redirected causing lpc to read commands from file. Commands may be abreviated; the following is the list of recognized commands. ? [ command ... ] help [ command ... ] Print a short description of each command specified in the argument list, or, if no arguments are given, 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 cannot be printed (i.e., do not 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 new printer jobs from being entered into the queue by lpr. 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(1). This is normally used to take a printer down and let others know why (lpq will indicate the printer is down and print the status message). enable { all | printer ... } Enable spooling on the local queue for the listed printers. This will allow lpr to put new jobs in the spool queue. exit quit Exit from lpc. 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. Lpq will report that there is no daemon present when this condition occurs. If the user is the super-user, 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 on the local machine. 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. Undoes the effects of down. FILES
/etc/printcap printer description file /usr/spool/* spool directories /usr/spool/*/lock lock file for queue control SEE ALSO
lpd(8), lpr(1), lpq(1), lprm(1), printcap(5) DIAGNOSTICS
?Ambiguous command abreviation matches more than one command ?Invalid command no match was found ?Privileged command command can be executed by root only 4.2 Berkeley Distribution November 1, 1996 LPC(8)
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lpc(1B) SunOS/BSD Compatibility Package Commands lpc(1B) NAME
lpc - line printer control program SYNOPSIS
/usr/ucb/lpc [ command [ parameter...]] DESCRIPTION
The lpc utility controls the operation of local printers. Use lpc to perform the following functions: o start or stop a printer, o disable or enable a printer's spooling queue, o rearrange the order of jobs in a print queue, or o display the status of a printer print queue and printer daemon. lpc can be run from the command line or interactively. Specifying lpc with the optional command and parameter arguments causes lpc to interpret the first argument as an lpc command, and all other arguments as parameters to that command. Specifying lpc without arguments causes it to run interactively, prompting the user for lpc commands with lpc>. By redirecting the standard input, lpc can read commands from a file. USAGE
lpc commands may be typed in their entirety or abbreviated to an unambiguous substring. Some lpc commands are available to all users; oth- ers are available only to super-users. All users may execute the following lpc commands: ? [command ...] | help [command ...] Displays a short description of command. command is an lpc command. If command is not specified, displays a list of lpc commands. exit | quit Exits from lpc. status [all | printer ...] Displays the status of print daemons and print queues. all specifies that this command is performed on all locally attached printers. printer indicates this command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for infor- mation regarding naming conventions for atomic names. Only a super-user may execute the following lpc commands: abort [all | printer ...] Terminates an active spooling daemon. Disables printing (by preventing new daemons from being started by lpr(1B)) for printer. all specifies this command is performed on all locally attached printers. printer indicates this command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for information regarding naming conventions for atomic names. clean [all | printer ...] Removes files created in the print spool directory by the print daemon from printer 's print queue. all specifies that this command is performed on all locally attached printers.printer indicates this command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for information regarding naming conventions for atomic names. disable [all | printer ...] Turns off the print queue for printer. Prevents new printer jobs from being entered into the print queue for printerby lpr(1B). all specifies that this command is performed on all locally attached printers. printer indicates this command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for information regarding naming conventions for atomic names. down [all | printer ...] [message] Turns the queue for printer off and disables printing on printer. Inserts message in the printer status file. message does not need to be quoted; multiple arguments to message are treated as arguments are to echo(1). Use down to take a printer down and inform users. all specifies that this command is performed on all locally attached printers. printer indicates this command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for information regarding naming conventions for atomic names. enable [all | printer ...] Enables lpr(1B) to add new jobs in the spool queue. all specifies that this command is performed on all locally attached printers. printer indicates this command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for infor- mation regarding naming conventions for atomic names. restart [all | printer ...] Attempts to start a new printer daemon. restart is useful when a print daemon dies unexpectedly and leaves jobs in the print queue. all specifies that this command is performed on all locally attached printers. printer indicates that this command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for information regarding naming conventions for atomic names. start [all | printer ...] Enables printing. Starts a spooling daemon for the printer. all specifies that this command is performed on all locally attached printers. printer indicates the command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for information regarding naming conventions for atomic names. stop [all | printer ...] Stops a spooling daemon after the current job is complete. Disables printing at that time. all specifies that this command is performed on all locally attached printers. printer indicates this command is performed on specific printers. Specify printer as an atomic name. See printers.conf(4) for information regarding naming conventions for atomic names. topq printer [request-ID ...] [user ...] Moves request-ID or print jobs belonging to user on printer to the beginning of the print queue. Specify user as a user's login name. Specify printer as an atomic name. See printers.conf(4) for information regarding naming conventions for atomic names. up [all | printer ...] Turns the queue for printer on and enables printing on printer. Deletes the message in the printer status file (inserted by down). Use up to undo the effects of down. all specifies that this command is performed on all locally attached printers. printer indicates this command is performed on specific printers. Specify printer as an atomic name. See printers.conf( 4) for information regarding naming conventions for atomic names. EXIT STATUS
The following exit values are returned: 0 Successful completion. non-zero An error occurred. FILES
/var/spool/lp/* LP print queue. /var/spool/lp/system/pstatus Printer status information file. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscplp | +-----------------------------+-----------------------------+ SEE ALSO
echo(1), lpq(1B), lpr(1B), lprm(1B), lpstat(1), lpsched(1M), lpshut(1M), svcadm(1M), printers.conf(4), attributes(5) DIAGNOSTICS
Use the svcs(1) utility to check if svc:/application/print/server is running. If it is not running, use svcadm enable svc:/applica- tion/print/server to start lpsched. See svcadm(1M). Ambiguous command Indicates that the lpc command or abbreviation matches more than one command. ?Invalid command Indicates that the lpc command or abbreviation is not recognized. ?Privileged command Indicates that the lpc command or abbreviation can be executed only by a super-user. lpc: printer: unknown printer to the print service Indicates that printer does not exist in the LP database. Check that printer was correctly specified. Use lpstat -p or the status command (see lpstat(1) or USAGE) to check the status of printers. lpc: error on opening queue to spooler Indicates that the connection to lpsched failed. Usually means that the printer server has died or is hung. Use /usr/lib/lp/lpsched to check if the printer spooler daemon is running. lpc: Can't send message to LP print service lpc: Can't receive message from LP print service Indicates that the LP print service stopped. Contact the LP administrator. lpc: Received unexpected message from LP print service Indicates a problem with the software. Contact the LP administrator. SunOS 5.10 5 Aug 2004 lpc(1B)