[bug-grep] Re: GNU grep 2.5.1

[Claudio Fontana]

> Today I decided that
> 
> grep -c "\xaa\x55\x00\x00\x04\x90" bigDataFile
> 
> should be faster. Well, it is faster, but it always
> says 0.

You are basically looking for the string
'xaax55x00x00x04x90'.

If you want to use perl regular expressions, try 
grep -P -c '\xaa\x55\x00\x00\x04\x90'

However, beware that perl regex support is still
experimental in grep.

Does this solve your issue?

Claudio



                
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