[ale] Perl pack question

[lists at serioustechnology.com (Geoffrey Myers)]

So I'm trying to modify a binary file with perl. All is going well except one issue. I need to change an integer value. I can successfully retrieve the value by using:

unpack("S", $var);

I assumed, incorrectly that I could do this to reset the value:

pack("S", $newvar);

Not working. Suggestions?

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