in reply to (code) One-liner parses ippl log for suspicious packets
A zero-width negative look-behind assertion.
For example `/(?<!bar)foo/' matches any
occurrence of "foo" that does not follow "bar".
Works only for fixed-width look-behind.
perl -ne 'print if /(?<!time)\(/' < ippl.log > ippl.noteworthy
An Englishman in New York
An American Werewolf in London
An American in Paris
The Innocents Abroad
An Idiot Abroad
Robinson Crusoe on Mars
A Connecticut_Yankee in King Arthur's Court
There and Back Again
Travels into Several Remote Nations of the World
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