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... or perhaps my $previous = undef; to clearly reflect that there is no previous-line, much as NULL (in a database column) denotes the complete absence of any value at all.   Whatever makes the most sense in your particular situation.


In reply to Re^2: Perl: How to match a line and print words at line immediately above it? by sundialsvc4
in thread Perl: How to match a line and print words at line immediately above it? by WWq

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