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lpq(1) [bsd man page]

LPQ(1)							      General Commands Manual							    LPQ(1)

NAME
lpq - spool queue examination program SYNOPSIS
lpq [ +[ n ] ] [ -l ] [ -Pprinter ] [ job # ... ] [ user ... ] DESCRIPTION
lpq examines the spooling area used by lpd(8) for printing files on the line printer, and reports the status of the specified jobs or all jobs associated with a user. lpq invoked without any arguments reports on any jobs currently in the queue. A -P flag may be used to spec- ify a particular printer, otherwise the default line printer is used (or the value of the PRINTER variable in the environment). If a + argument is supplied, lpq displays the spool queue until it empties. Supplying a number immediately after the + sign indicates that lpq should sleep n seconds in between scans of the queue. All other arguments supplied are interpreted as user names or job numbers to filter out only those jobs of interest. For each job submitted (i.e. invocation of lpr(1)) lpq reports the user's name, current rank in the queue, the names of files comprising the job, the job identifier (a number which may be supplied to lprm(1) for removing a specific job), and the total size in bytes. The -l option causes information about each of the files comprising the job to be printed. Normally, only as much information as will fit on one line is displayed. Job ordering is dependent on the algorithm used to scan the spooling directory and is supposed to be FIFO (First in First Out). File names comprising a job may be unavailable (when lpr(1) is used as a sink in a pipeline) in which case the file is indi- cated as ``(standard input)". If lpq warns that there is no daemon present (i.e. due to some malfunction), the lpc(8) command can be used to restart the printer daemon. FILES
/etc/termcap for manipulating the screen for repeated display /etc/printcap to determine printer characteristics /usr/spool/* the spooling directory, as determined from printcap /usr/spool/*/cf* control files specifying jobs /usr/spool/*/lock the lock file to obtain the currently active job SEE ALSO
lpr(1), lprm(1), lpc(8), lpd(8) BUGS
Due to the dynamic nature of the information in the spooling directory lpq may report unreliably. Output formatting is sensitive to the line length of the terminal; this can results in widely spaced columns. DIAGNOSTICS
Unable to open various files. The lock file being malformed. Garbage files when there is no daemon active, but files in the spooling directory. 4.2 Berkeley Distribution June 5, 1986 LPQ(1)

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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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