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See perlop under 'Gory details of parsing quoted constructs' -> 'Removal of backslashes before delimiters'

With the '.' being the delimiter, the backslash before the dot is removed before the regex parser sees the expression. So your code is equivalent to s/.// which explains your result.

-- Hofmator

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In reply to Re: Regex - Delimiter question by Hofmator
in thread Regex - Delimiter question by prasadbabu

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