LPC(8)		    UNIX Programmer's Manual		   LPC(8)



NAME
     lpc - line printer control program

SYNOPSIS
     /usr/sbin/lpc [ command [ argument ... ] ]

DESCRIPTION
     _L_p_c is used by  the  system  administrator  to  control  the
     operation	of the line printer system. For each line printer
     configured in /etc/printcap, _l_p_c 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, _l_p_c will prompt for commands from the
     standard  input.	If arguments are supplied, _l_p_c interprets
     the first argument as a command and the remaining	arguments
     as  parameters  to  the  command.	The standard input may be
     redirected causing _l_p_c 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 _l_p_r)  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 com-
	  plete 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
	  _l_p_r.




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LPC(8)		    UNIX Programmer's Manual		   LPC(8)



     down { all | printer } message ...
	  Turn the specified printer queue off, disable  printing
	  and put _m_e_s_s_a_g_e in the printer status file. The message
	  doesn't need to be quoted, the remaining arguments  are
	  treated  like _e_c_h_o(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 _l_p_r 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.	_L_p_q  will
	  report that there is no daemon present when this condi-
	  tion 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 _d_o_w_n.

FILES
     /etc/printcap	     printer description file
     /usr/spool/*	     spool directories
     /usr/spool/*/lock	     lock file for queue control




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LPC(8)		    UNIX Programmer's Manual		   LPC(8)



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
















































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