The error messages match up a little better with the code now, and without having tested it I've got a suspicion: It may be a Perl version before v5.10 which does not support the // defined-or operator. If that's the case it would have to be replaced by equivalent logic using defined. See also perlver.

BTW, please mark your updates in the original node a little more clearly, see here for why.

In reply to Re^3: code works in Windows (Strawberry Perl), fails in Unix - possible path/environment issue by Anonymous Monk
in thread code works in Windows (Strawberry Perl), fails in Unix - possible path/environment issue by ilmenolimone

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