Re^4: How to ensure that a supported version of my script is being executed?

Greetings, It was intended for the OP (I apparently missed the "they can re-write" his script part). :P
In response to your post; Right you are -- chown opuid:opgid ./opscript-name; chmod 0744 ./opscript-name (op prefix meaning Original Poster). :)
--Chris

#!/usr/bin/perl -Tw
use perl::always;
my $perl_version = "5.12.4";
print $perl_version;

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