Silly rabbit. :-) Nice approach, though.

# legible:
join( "_", split( /\./, $_, y/.// ) );

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The tr/// here counts the dots in the string and uses the number as a limit to split — since the number is one less than the number of fragments delimited by dots, the last dot in the string does not get to serve as a delimiter.

Makeshifts last the longest.

In reply to Re^2: Replace all occurrences but the last by Aristotle
in thread Replace all occurrences but the last by kiat

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