NAME    [Toc]    [Back]

       lpc - Line printer control program

SYNOPSIS    [Toc]    [Back]

       lpc [command[argument...]]

DESCRIPTION    [Toc]    [Back]

       The  lpc  command  is  used by the system administrator to
       control the operation of the line printer system. For each
       line printer configured in the /etc/printcap file, the lpc
       command may be used for disabling or enabling  a  printer;
       disabling  or  enabling  the printer spooling queue; rearranging
 the order of jobs in a spooling queue  or  finding
       the  status of printers, their associated spooling queues,
       and the printer daemons.

       Without arguments, lpc prompts for commands from the standard
  input.  When  arguments are supplied, lpc interprets
       the first argument as a command and  any  remaining  arguments
  as  command  parameters.  The standard input may be
       redirected so that lpc reads commands  from  a  file.  The
       following is the list of recognized lpc commands: Prints a
       short description of each command specified in  the  argument
  list  or,  when no arguments are supplied, a list of
       the recognized commands.  Prints a  short  description  of
       each  command  specified  in the argument list or, when no
       arguments are supplied, a list of the recognized commands.
       Terminates  an active spooling daemon running on the local
       host, and then disables printing. This prevents  new  daemons
  from  being  started  by lpr or lp for the specified
       printers.  [Tru64 UNIX]  Examines the printer  description
       file  and other components of the printing environment for
       potential configuration errors for each named printer.

              A diagnostic  message  for  each  possible  problem
              found is displayed. The file name containing a possible
 problem precedes the message; otherwise,  the
              name  of a printer with a possible problem precedes
              the message. If no problems were detected, the message
  No configuration problems found is displayed.

              The check subcommand reports problems; it does  not
              correct them.

              The check subcommand checks for the printer characteristic
 names that are listed in the Printer capability
 data base only; for further information, see
              the printcap(4) reference page. If lpc check  finds
              a  nonstandard printer characteristic name, it generates
 a diagnostic message even though the printer
              characteristic  may  be used correctly in a special
              user-written filter.  Removes any temporary  files,
              data  files,  and  control  files  that  cannot  be
              printed (files that do not form a complete  printer
              job)  from  the  specified  printer queue(s) on the
              local machine.  Turns the specified printer  queues
              off.  This  prevents  new  printer  jobs from being
              entered into the queue by lpr  or  lp.   Turns  the
              specified printer queue off, disables printing, and
              puts a message in the printer status file. The message
  does  not need to be quoted because remaining
              arguments are treated the same as echo.   The  down
              command is normally used to take a printer down and
              let others know why.  (The  lpq  command  indicates
              that  the  printer is down and prints a status message.)
  Enables spooling on the local queue for the
              listed  printers.  This allows lpr or lp to put new
              jobs in the spool queue.  Exit from lpc.  Exit from
              lpc.   Attempts to start a new printer daemon. This
              is useful when some abnormal condition  causes  the
              daemon  to terminate unexpectedly and leave jobs in
              the queue.  lpq reports that  there  is  no  daemon
              present  when this condition occurs.  When a daemon
              is stuck, you must first kill it and then  restart.
              Enables  printing  and starts a spooling daemon for
              the listed printers.  Displays the status  of  daemons
  and queues on the local machine. When printer
              name parameters are not supplied, information about
              all  printers is provided.  Stops a spooling daemon
              after the current job has  completed  and  disables
              printing.   Places  jobs in the order listed at the
              top of the printer queue.  Enables all printing and
              starts  a new printer daemon. Cancels the effect of
              the down command.

RESTRICTIONS    [Toc]    [Back]

       Normally, the clean subcommand allows you  to  remove  all
       print  jobs  on  the  system  or  all  jobs on a specified
       printer.  However, clean does not remove the jobs  in  the
       spooling  queues.  Therefore, you should use the lprm command
 on a printer-by-printer basis to remove the jobs  you
       want to eliminate.

ERRORS    [Toc]    [Back]

       The following diagnostic messages are possible.  Abbreviation
 matches more than one command.  No match  was  found.
       Command may be executed by the superuser only.

FILES    [Toc]    [Back]

       Specifies  the command path Specifies the printer description
 file Specifies print spool directories Specifies  the
       lock file for queue control

SEE ALSO    [Toc]    [Back]

       Commands:   cancel(1),   lp(1),  lpd(8),  lpr(1),  lpq(1),
       lprm(1), lpstat(1)

       Files: printcap(4)



                                                           lpc(8)