At the moment, I am doing the following to exclude some exception strings. The more I need to exclude, the longer the string becomes and it has become error prone as I edit the list manually.
I presume I can do something like assign several variables and then concatenate them together and will be trying this out later, so something like below:
I am sure someone can suggest a better and more efficient way of doing this. I am hoping to be able to use an exception file and use that as an exclusion list when parsing output.txt but can't find an example of how to do it like that. So if I need to exclude more search string, then I just edit that exception file. And that exception file can contain other things to exclude too which is a more efficient way of doing a search <file> but exclude <strings>.
Please advise of tips and examples that I can try.
Last edited by newbie_01; 12-19-2019 at 06:59 PM..
Reason: More info
If your exclude.txt contains content like :
And you wish to exclude from your output.txt based on IP address in exclude.txt, this could be a start.
What other things you wish to exclude except IP address ?
Above is just a simple example.
I think your current concern is about overlong lines.
The | divider is an egrep thing.
In grep and fgrep you can have a newline.
But you should also be concerned about exactness.
The fgrep takes a dot as is, while in grep and egrep a dot means "any character". So fgrep is more exact here.
Still each search item can be a part of the whole, for example fgrep "10.168.1.13" can find "10.168.1.13" and "110.168.1.13" and "10.168.1.136".
You should be aware of several things that can catch you:-
Using egrep is the same as grep -E so the string passed is an Extended Regular Expression. Along with | as an 'or' separator, it also means that the . is a wildcard for a single character. Searching for 192.168 will also match 192g168
You can group expressions or characters using [expression] so you can consolidate your search/exclude.
I'm not clear what the overall requirement for this is, but I think you are looking for sessions for user mickey that are/aren't from a specific set up IP addresses. Might I suggest:
If this is all there is, then it may be to better blend these together like 192\.168\.(10[123]|123)
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