++shmem. Today, when I try either

perl -Mopen=IO,:raw -pi.orig pi.pl src.bin

or

perl -Mopen=IN,:raw,OUT,:raw -pi.orig pi.pl src.bin

... it works (file length stays the same with the original). I could have sworn I'd tried the second version, but maybe I had mixed up my test cases, like you said. Good to know that it can actually be done using the -pi magic notation.

Thanks again.

In reply to Re^5: binmode i/o for perl -pi in-place editing by pryrt
in thread binmode i/o for perl -pi in-place editing by pryrt

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