Or you can leave it where it is now, and open the file for appending instead of clobbering the file:

open(TMP,">>$tmp") or die "TMP open failed: $!";

See perlopentut for more information.

Update: Further reflection on what is posted would seem to imply this thread is not immediately pertinent to the OP.

In reply to Re^2: Batch processing of files by kennethk
in thread Batch processing of files by austinby

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