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Command line arguments [message #42537]

Fri, 11 February 2005 12:27

Mr. No Address
Messages: 11
Registered: February 2005

Junior Member

Way back in the day I posted a very similar question. Someone gave me a
solution using environment variables that has worked fine all this time,
but now I'm updating things and I'm seeking a cleaner solution. Here we
go...

I have a Perl program that I compile and run an IDL program from. I'm
now looping through several hundred times and it seems wasteful to
compile the IDL program every loop.

# The relevant Perl code...
$ENV{"file"}="$filepath";
open(IDL, "|/usr/local/bin/idl") || die "Can't open IDL: $!";
print IDL ".Compile mentor \n";
print IDL "mentor \n";
close IDL;

# The relevant IDL code...
PRO mentor
file=GETENV('file')

I would like to compile the program once outside the loop and then pass
the file using an argument instead grabbing the file from an environment
variable. Can I do something like this?

print IDL "mentor, $filepath\n";

I found a link with google that describes what I want to do. Judging
from the errors I'm getting I'd say I'm close, but as with most
programming errors, close still doesn't work. If this can be done, I'm
guessing I need to add something to my IDL code. I hope the link below
works. If not, google "passing args idl" select groups and select the
fourth link down "IDL batch mode: Command line args?"

http://groups-beta.google.com/group/comp.lang.idl-pvwave/bro wse_thread/thread/47c013740c2cc376/627e5899522d54e8?q=passin g+args+idl&_done=%2Fgroups%3Fq%3Dpassing+args+idl%26hl%3 Den%26lr%3D%26tab%3Dng%26ie%3DUTF-8%26sa%3DN%26&_doneTit le=Back+to+Search&&d#627e5899522d54e8

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[Message index]

		Command line arguments By: Mr. No Address on Fri, 11 February 2005 12:27
		Re: Command line arguments By: David Fanning on Mon, 21 February 2005 12:20
		Re: command line arguments By: David Fanning on Mon, 29 September 2008 19:21
		Re: command line arguments By: xiao zhang on Mon, 29 September 2008 19:10
		Re: command line arguments By: David Fanning on Mon, 29 September 2008 12:13
		Re: command line arguments By: Jean H. on Mon, 29 September 2008 13:22
		Re: command line arguments By: Vince Hradil on Mon, 29 September 2008 12:36
		Re: command line arguments By: xiao zhang on Mon, 29 September 2008 12:04
		Re: command line arguments By: Rick Towler on Mon, 29 September 2008 11:58
		Re: command line arguments By: xiao zhang on Mon, 29 September 2008 11:34
		Re: command line arguments By: xiao zhang on Mon, 29 September 2008 11:32
		Re: command line arguments By: Spon on Mon, 29 September 2008 09:41

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