Assuming you want to do it from Nautilus that is right mouse click and print the file. I would use Nautilus file manager scripts.

http://g-scripts.sourceforge.net/

You could then write a two line bash code to send it to two printers while using the link above to pass the file name to your script.

#!/bin/bash
LPR -Pprinter1 [-options] print file name, copies
LPR -Pprinter2 [-options] print file name, copies




From: Shawn Badger <shawn@badger.pro>
To: Main PLUG discussion list <plug-discuss@lists.plug.phoenix.az.us>
Sent: Monday, March 19, 2012 6:43 AM
Subject: Re: Printing a job to 2 printers at the same time

I'm not a 100% sure what kind of file it will be, but I am thinking it
will be a text file.
In my searches I found that I may be able to use the tee command and
lpr as well. I'm not sure that would be the cleanest way of doing it,
but it would be better than nothing.



On Wed, Mar 14, 2012 at 6:30 PM, John <jharitos@yahoo.com> wrote:
> I think the lpr command is a part of cups. You could print to two computers
> using this but you need to write a script to do this. Is the file a txt,
> pdf, or ps? lpr needs this format.
>
> ________________________________
> From: Shawn Badger <shawn@badger.pro>
> To: plug-discuss@lists.plug.phoenix.az.us
> Sent: Tuesday, March 13, 2012 8:32 AM
> Subject: Printing a job to 2 printers at the same time
>
> Does anyone know of way to print the same job to multiple printers though
> CUPS?
>
> I found tea4cups http://www.pykota.com/software/tea4cups but it looks
> like it hasn't been maintained in a while and it is behind a $25
> paywall.
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