The way that *I* understand it, and I'm far from an expert (but I sure do like to torture Patrick), if you pass the jobs with a single lpr command it's going to process the two files as a single print job. If you have a printer that defaults to duplex mode, then you'll get the double-sided output. If you use the two distinct lpr commands then your printer will get signaled "end of job" and it will spit out a page, then process the next.
What kind of printer are you using and what does your printcap look like? --- Keith Rinaldo Systems Administrator College of Engineering University of Nevada, Las Vegas ----- Original Message ----- From: "Toby Blake" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, March 04, 2003 6:12 AM Subject: LPRng: 2 printed files concatenating onto same paper > Hi there, > > I have two single-page postscript files, file1.ps and file2.ps. > > If I print these using the command: > > lpr file1.ps file2.ps > > ... then they come out on the same piece of paper (on different > sides). > > However, if I print them like this: > > lpr file1.ps; lpr file2.ps > > ... then they come out on separate sheets, as I would want. > > I have a couple of questions arising from this: > > (1) What is it in the postscript in file1.ps that causes this to > happen? What is needed to properly terminate a postscript > job/page? > > (2) My understanding is that even if they are passed to lpr in the > same command, they should still be filtered and processed > separately, so why does lpr file1.ps file2.ps produce a different > result from lpr file1.ps; lpr file2.ps. I suppose I'd like to > know what happens differently in each case. > > I'm using LRRng-3.8.10 > > Thanks for any info > > Toby Blake > University of Edinburgh > > > ----------------------------------------------------------------------------- > YOU MUST BE A LIST MEMBER IN ORDER TO POST TO THE LPRNG MAILING LIST > The address you post from MUST be your subscription address > > If you need help, send email to [EMAIL PROTECTED] (or lprng-requests > or lprng-digest-requests) with the word 'help' in the body. For the impatient, > to subscribe to a list with name LIST, send mail to [EMAIL PROTECTED] > with: | example: > subscribe LIST <mailaddr> | subscribe lprng-digest [EMAIL PROTECTED] > unsubscribe LIST <mailaddr> | unsubscribe lprng [EMAIL PROTECTED] > > If you have major problems, send email to [EMAIL PROTECTED] with the word > LPRNGLIST in the SUBJECT line. > ----------------------------------------------------------------------------- > ----------------------------------------------------------------------------- YOU MUST BE A LIST MEMBER IN ORDER TO POST TO THE LPRNG MAILING LIST The address you post from MUST be your subscription address If you need help, send email to [EMAIL PROTECTED] (or lprng-requests or lprng-digest-requests) with the word 'help' in the body. For the impatient, to subscribe to a list with name LIST, send mail to [EMAIL PROTECTED] with: | example: subscribe LIST <mailaddr> | subscribe lprng-digest [EMAIL PROTECTED] unsubscribe LIST <mailaddr> | unsubscribe lprng [EMAIL PROTECTED] If you have major problems, send email to [EMAIL PROTECTED] with the word LPRNGLIST in the SUBJECT line. -----------------------------------------------------------------------------
