Grep for lines with X and Y - UNIX for Dummies Questions & Answers

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Grep for lines with X and Y

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#4 (permalink)

06-24-2009

jim mcnamara jim mcnamara is offline

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Join Date: Feb 2004

Location: NM

Posts: 5,811

if you can have cat ... dog and/or dog .. cat:
one way:

Code:

tail -f somefile | grep cat | grep dog

if cat always comes before dog
one way:

Code:

tail -f somefile | grep 'cat.*dog'