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Top Forums UNIX for Dummies Questions & Answers qdsemon Post 16672 by killerserv on Tuesday 5th of March 2002 08:06:23 PM
Old 03-05-2002
Use the command ps -ef | grep qdaemon to verify that the qdaemon is not active. If the qdaemon is not active, you should see, at the most, a line of output representing the grep itself. It should look something like this:

root 2992 18792 0 12:46:39 pts/2 0:00 grep qdaemon

If the qdaemon is active, which it almost certainly will not be, you will see a variant of the following line:

root 2980 3652 0 12:41:25 - 0:00 /usr/sbin/qdaemon

If the qdaemon is not active, issue the command startsrc -s qdaemon to restart the qdaemon. If the qdaemon died, it should have been restarted automatically by the srcmstr process, but it doesn't always work, so restart it manually. You should see a variant of this message:

0513-059 The qdaemon Subsystem has been started. Subsystem PID is 3000.

Wait one minute or so and re-issue the command ps -ef | grep qdaemon. Is the qdaemon still active or did it just start and then die? If the qdaemon is no longer active, despite the fact that you just restarted it and received a message stating the qdaemon's process id (PID) and that it was active, check for the existence of the file named /var/spool/lpd/stat/pid. You can do this by issuing the command cat /var/spool/lpd/stat/pid. This file contains the PID of an active qdaemon. When the qdaemon is not active, the file is supposed to be removed.
 
lprm(1) 						      General Commands Manual							   lprm(1)

Name
       lprm - remove jobs from line printer queue

Syntax
       lprm [-Pprinter] [-] [job #...] [user...]

Description
       The  command removes a job, or jobs, from a printer's spool queue.  Since the spooling directory is protected from users, using is normally
       the only method by which a user may remove a job.

       The command without any arguments deletes the currently active job if it is owned by the user who invoked

       If the - flag is specified, removes all jobs which a user owns.	If the super-user employs this flag, the spool queue is emptied  entirely.
       The owner is determined by the user's login name and host name on the machine where the command was invoked.

       Specifying  a user's name, or list of user names, causes to attempt to remove any jobs queued belonging to that user (or users).  This form
       of invoking is useful only to the super-user.

       A user may dequeue an individual job by specifying its job number.  This number may be obtained from the program.  For example,
       % lpq -l

       1st: ken  [job #013ucbarpa]
	    (standard input)	100 bytes
       % lprm 13

       The command announces the names of any files it removes and is silent if there are no jobs in the queue which match the request list.

       The command kills off an active daemon, if necessary, before removing any spooling files.  If a daemon is killed, a new	one  is  automati-
       cally restarted upon completion of file removals.

Options
       -		   Removes all jobs owned by you only.

       -P printer	   Removes jobs from specified printer.  It may be used to specify the queue associated with a specific printer (otherwise
			   the default printer, or the value of the PRINTER variable in the environment is used).

Restrictions
       Since there are race conditions possible in the update of the lock file, the currently active job may be incorrectly identified.

Diagnostics
       ``Permission denied" if the user tries to remove files other than his own.

Files
       /etc/printcap	   printer characteristics file
       /usr/spool/*	   spooling directories
       /usr/spool/*/lock   lock file used to obtain the pid of the current
			   daemon and the job number of the currently active job

See Also
       lpq(1), lpr(1), lpd(8)

																	   lprm(1)
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