rmallett@ccs.carleton.ca (Rick Mallett) (04/19/91)
I am writing a perl script which I must, for the time being, integrate with some csh scripts. For this I need to be able to examine a shell variable created in a csh parent script, and I would also like to be able to create a csh variable from within the perl script, although the latter might be asking too much since I don't even know how to do it from within a csh script. Needless to say I am a rank amateur at perl and the solution might indeed be trivial but after two hours of hacking I haven't managed to trip over the answer. Yes I do realize that I could use environment variables using $ENV{'xxxx'} or modify the calling script to pass the variables as command line arguments, but I would much rather simply integrate my perl script without changing the csh script which invoked it. Any suggestions?
worley@compass.com (Dale Worley) (04/20/91)
From: rmallett@ccs.carleton.ca (Rick Mallett) For this I need to be able to examine a shell variable created in a csh parent script, and I would also like to be able to create a csh variable from within the perl script, although the latter might be asking too much since I don't even know how to do it from within a csh script. You can't. You can't do it with a csh script, either, unless you 'source' it rather than running it. This is because shell variables are private to the shell process running the script, and the sub-script (which is run in a sub-process) can't get at them. Dale Dale Worley Compass, Inc. worley@compass.com -- Quality isn't Job 1. Job 1 is getting the code out the door as soon as possible with no bugs that the customer will detect in the first 5 seconds of execution. And in reality, this is what the customer will reward us for doing.