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by MattJ100
5072 days ago
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The main reason to use grep is portability/availability. While a modern improvement to grep (yes, I'm an ack user and fan too) you can't simply depend on it in portable scripts and such. grep is defined for POSIX after all: http://pubs.opengroup.org/onlinepubs/009695399/utilities/gre... I also suspect (without looking) that there are obscure (but occasionally useful) grep features that ack doesn't support. |
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