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Message: [QUOTE="s1037989, post: 4828360"] I want to write a Perl program that is a wrapper for another program. The Perl program will stay running indefinitely and therefore I would like the underlying program to stay running indefinitely as well. How can I have my Perl program launch the other program and continuously feed it data via stdout to the sub's stdin and read the sub's stdout on my Perl's stdin without the sub exiting after each request? Speaking less generically, for prototyping purposes, I want to expand the capabilities of squidGuard using Perl. Therefore, the redirector_program in squid will be my Perl program which I would like to just be a wrapper around squidGuard. But I don't want to have to relaunch squidGuard for EVERY request. [/QUOTE]