topic scripting help for LP command in Operating System - HP-UX

scripting help for LP command

Peter A. Berger Jr. — Mon, 21 Apr 2003 18:52:46 GMT

UNIX newbie needs scripting help for boring manual process. Each day I do the following:
lpstat -o
cancel AcctHold_1-#### (where #### is the print job having the largest kb size)
enable AcctHold_1 (and wait 30sec)
disable AcctHold_1

This lpstat usually has only 2 print jobs, a small and super-huge one. Is there a way to make a script do the same steps above, but have it (script) automatically figure out which print job is the largest and kill that one? The two print jobs differ greatly in size. Any help/suggestions would be -- awesome. Thanks -- UX Newbie

Re: scripting help for LP command

Ramkumar Devanathan — Mon, 21 Apr 2003 18:56:46 GMT

hi Thomas,

Would be helpful if you could throw the output of the lpstat -o command.

- ramd.

Re: scripting help for LP command

Geoff Wild — Mon, 21 Apr 2003 19:40:52 GMT

First, if it is always on printer AcctHold_1, then just do a :

lpstat AcctHold_1

Next, is the the name of the large file being printed always the same?
Is the size of the large file always the same?
Does the large file always get submitted at the same time?

That would make it easier - else you'll have to do some comparing with AWK....

Rgds...Geoff

Re: scripting help for LP command

Rodney Hills — Mon, 21 Apr 2003 20:34:22 GMT

If you use perl, you can scan the "request" folder for the printer for print jobs.

$prt="AcctHold_1";
chdir("/var/spool/lp/request/$prt");
open(INP,"/usr/bin/find . -name 'd*' -print |");
while() {
chomp;
if ($sz=-s $_ > $big) { $fil=$_ ; $big=$sz; }
}
system("/usr/bin/cancel ${prt}-".(0+substr($fil,4,4)));

HTH

-- Rod Hills

Re: scripting help for LP command

Peter A. Berger Jr. — Tue, 22 Apr 2003 11:22:02 GMT

Here's the exact output from lpstat in JPG format...

Re: scripting help for LP command

Robin Wakefield — Tue, 22 Apr 2003 11:34:47 GMT

Hi,

lpstat -o | awk '/^AcctHold/{req=$1;getline;if ($(NF-1)>max){kreq=req;max=$(NF-1)}}END{system("cancel "kreq)}'

should do it.

rgds, Robin

Re: scripting help for LP command

Geoff Wild — Tue, 22 Apr 2003 12:25:46 GMT

Robin - excellent AWKing! that's a 10 in my book.

Rgds...Geoff

Re: scripting help for LP command

Mark Ellzey — Tue, 22 Apr 2003 12:29:46 GMT

Hi,

How is this print job being created? Rather than canceling the print job after the fact, you may want to look at where it's being created and handle it there.

Regards,
Mark

Re: scripting help for LP command

Peter A. Berger Jr. — Tue, 22 Apr 2003 12:50:51 GMT

Robin -- script worked great! The only issue I have now is that it doesn't run for normal users (ie: non-root). Gives me an error message about me not being the owner of the print job. Is there a way to run this script as ROOT (SUID?) so that it bypasses this error message? Thanks again. :)

Re: scripting help for LP command

Steve Steel — Tue, 22 Apr 2003 12:55:57 GMT

Re: scripting help for LP command

Robin Wakefield — Tue, 22 Apr 2003 13:09:41 GMT

Hi Peter,

I would probably incorporate sudo into the script, i.e.

system("sudo cancel "kreq)

If you haven't already got this utility, I'd recommend its use - it can be downloaded from:

http://hpux.connect.org.uk/hppd/hpux/Sysadmin/sudo-1.6.6

rgds, Robin

Re: scripting help for LP command

John Meissner — Tue, 22 Apr 2003 13:23:44 GMT

If you need to cancel the same print job every day why not stop the print job from printing in the first place?

Re: scripting help for LP command

Peter A. Berger Jr. — Fri, 20 Oct 2006 06:50:17 GMT

closed