in reply to Search pattern not terminated at warnings.pm line 508.

I got a "permission denied" from the shell, when executing your "exec 'env'..." line. Changing that line to: 
exec '/usr/bin/env',"MYCODEFILE=$0",@ARGV;

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allows the line to execute, and shows the environment variables.

        What is the sound of Perl? Is it not the sound of a wall that people have stopped banging their heads against?
              -Larry Wall, 1992

In Section Seekers of Perl Wisdom