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Uhmmmmm... so the old adagio that "* is greedy" has an exception when zwnlaa come into play; I expected that the \s* had eat all the whitespace before the e-mail address. Ok. Now I am still to understand why that \S thing works...

Oh, by the way, I am doing:

perl -i.bak -pe 'BEGIN { $status = 0 } /^root:(?!\s*admin\@somewhere\.here\s*$)/ and $status = 1 ; END { exit $status }' aliases

and it seems to work great!

Ciao!
--bronto


In theory, there is no difference between theory and practice. In practice, there is.

In reply to Re^4: On zero-width negative lookahead assertions by bronto
in thread On zero-width negative lookahead assertions by bronto

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