grep help

[Tillman Hodgson]

On Wed, Jan 05, 2005 at 08:27:51PM -0800, Jay O'Brien wrote:
> I want to look at all of the lines in a FreeBSD log file that do not 
> have an entry from an IP, example 1.2.3.4.  Some basic help with the 
> use of grep would be appreciated. This is one of the arguments I've 
> tried that didn't work:
> 
> grep ^[^1.2.3.4]*$ logfile.log 

I like `grep -v` for "not" operations. Also note that "." is itself a
special character.

  grep -v 1\.2\.3\.4 logfile.log

might be closer to what you want.

-T


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