Your Perl is probably older than 5.10, so you can't use the defined-or operator. See perl5100delta for details.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re^3: compare csv files only to first fullstop character by choroba
in thread compare csv files only to first fullstop character by john.tm

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