System calls not using correct permissions?

[skilpat at gmail.com]

Oops, yeah I should have mentioned some of that. It's a Linux
environment, and it's running Python 2.2. To my knowledge, the batch
files my program calls run a few processes on some data and generate a
few temporary files. I believe those files are not correctly being
generated. There is an error message in one of the scripts that says
could not find xxx.xxx, which is a temp file it creates. The batch
files are all executed with tcsh.