local undef $/;
Thatīll first clear $/, then localize it. Legal syntax, but not probably what you meant. 
$ perl -wle'$_ = "x"; { local undef $_ } print'
Use of uninitialized value in print at -e line 1.

$ perl -wle'$_ = "x"; { undef local $_ } print'
x

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Makeshifts last the longest.

In reply to Re^2: Matching for the second,fourth, and fifth word in a text by Aristotle
in thread Matching for the second,fourth, and fifth word in a text by kirk123

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