in reply to Re: Re: Mod-2 add 2 binary files
in thread Mod-2 add 2 binary files

OIC. If this is what you want to do, then just: 
ln -s /dev/null cipher.txt

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Because X ^ X == 0.

~%{${@_[0]}}->{0}&&+++ NO CARRIER

In Section Seekers of Perl Wisdom