I've looked at discussions on this in the forums and can't find a straight answer.
I'm running eagle6.3 in Fedora 14. I want to include a command in a makefile (which I assume you realize is just a normal shell command) that runs the cam processor using my cam job file based on dependencies (gerber/drill files older than board file).
Can that be done? Without entering eagle and loading the job, loading the board and running it. Some magic you pass to 'eagle -X ........'?
Thanks,
Robert
I think I'm most of the way there with a Tcl script I wrote this afternoon. Given a job file testx.cam and a board file test.brd, I can do this:
$ ./ecamx.tcl --sections testx
Outline
measures
Component side (CS)
Layer 2
Layer 3
Layer 14
Layer 15
Solder side (SS)
CS Silk screen
CS Cream
CS Solder stop mask
SS Silk Screen
SS Cream
SS Solder stop mask
Drills
$ ./ecamx.tcl --verbose --dry-run testx test
job: testx.cam
board: test.brd
sections: ALL
found Outline
exec eagle -X -dGERBER_RS274X -otest.dim test.brd 20 49
found measures
exec eagle -X -dGERBER_RS274X -otest.mea test.brd 20 44 45 47 49
found Component side (CS)
exec eagle -X -dGERBER_RS274X -otest.cmp test.brd 1 17 18 20 49
found Layer 2
exec eagle -X -dGERBER_RS274X -otest.ly2 test.brd 2 17 18 20 49
found Layer 3
exec eagle -X -dGERBER_RS274X -otest.ly3 test.brd 3 17 18 20 49
found Layer 14
exec eagle -X -dGERBER_RS274X -otest.ly14 test.brd 14 17 18 20 49
found Layer 15
exec eagle -X -dGERBER_RS274X -otest.ly15 test.brd 15 17 18 20 49
found Solder side (SS)
exec eagle -X -dGERBER_RS274X -otest.sol test.brd 16 17 18 20 49
found CS Silk screen
exec eagle -X -dGERBER_RS274X -otest.plc test.brd 20 21 25 49
found CS Cream
exec eagle -X -dGERBER_RS274X -otest.crc test.brd 20 31 49
found CS Solder stop mask
exec eagle -X -dGERBER_RS274X -otest.stc test.brd 20 29 49
found SS Silk Screen
exec eagle -X -dGERBER_RS274X -otest.pls test.brd 20 22 26 49
found SS Cream
exec eagle -X -dGERBER_RS274X -otest.crs test.brd 20 32 49
found SS Solder stop mask
exec eagle -X -dGERBER_RS274X -otest.sts test.brd 20 30 49
found Drills
exec eagle -X -dEXCELLON -otest.drd test.brd 44 45
This may be all I need, even though I'm ignoring a lot of the other data in the job file and I'm not expanding placeholders (which I don't use anyways).
But I'm still open to better ideas 
Robert
