Negative Log filtering

In the Web GUI is there a way to do negative or inverted filtering?

 

 

For example 'not searchstring' or '-searchstring'

 

 

I know you can do this king of thing by using grep -v to filter the /var/log/ltm I just wondered if there was a Web GUI equivalent.

 

 

Here is the excerpt from 'man grep' for the -v option which might better explain my question...

 

 

-v, --invert-match Invert the sense of matching, to select non-matching lines.

 

 

fergu5