Dear monks, Is there any oneliner in perl to compare 2 lists and print out the differences alone? actually, i want to copy files from one folder to another. folder A has 600,000 files. folder B has 400,000 files. I want to copy only the remaining 200,000 files from A to B. the unix cp command doesnt work, as it gives a "argument too long error". So, i thought i wil write a script for this action. Any suggestions plz? thank you.

In reply to diff function by heidi

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