in reply to Re^2: Hash only portion of a file
in thread Hash only portion of a file

That's the way it works. Please see  $/ in perlvar. (AKA  $INPUT_RECORD_SEPARATOR and  $RS. See also
    perldoc -v "$/"
from the (update: Windoze) command line — use single-quotes in *nix (update: but see choroba's reply below).)

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Re^4: Hash only portion of a file
by choroba (Cardinal) on Jan 19, 2014 at 09:29 UTC
    As $/ is not a valid identifier name in shell (at least bash), you can use double quotes, too, as well as no quotes at all.
    لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ
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