Environment vars are definately case sensitive on Debian, and there's no special treatment of %ENV by perl:

print "uc => ", $ENV{EDITOR} || '', "\n";
print "lc => ", $ENV{editor} || '', "\n";
__END__
UC => emacs
lc =>

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In reply to Re^4: how do you check if it's compiled away? by FunkyMonk
in thread removing debugging code at compile time ? by rootcho

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