number of different lines in a file

Paddy paddy3118 at
Fri May 19 20:38:55 CEST 2006

If the log has a lot of repeated lines in its original state then
running uniq twice, once up front to reduce what needs to be sorted,
might be quicker?

 uniq log_file | sort| uniq | wc -l 

- Pad.

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