Count lines in file..fast

From: Arthur Prince (arthurp@TOTALISE.CO.UK)
Date: Thu Jun 19 2003 - 06:32:57 EDT

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I need a fast method of counting lines in a file that contain a specific
string.

I am currently using grep mystring myfile | wc -l

but this is slow on large files.

Anyone got a faster method?

AP

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