[wplug] simple regex

[Duncan Hutty]

> To which Bob Schmertz now responds:
> 
> In this context, it *is* <NOT>.  But the reason it doesn't work as you
> expected is because it means "show me lines which contain at least one 
> character which is not '@'.  Thus the line
> 
> @@@@@@@@@@@@@t@@@@@@@@@@@
> 
> would match because the 't' matches the 'not a @' requirement.
> 
> Another thing you could do would be
> 
> grep '^[^@]*$'
> 
> which would mean "the whole line should consist of characters which are 
> not @".  But grep -v is easier, especially when you want to exclude more 
> complex things.
> 
> -- 
> Cheers,
> Bob Schmertz
> 

Since the regex is required for an address in a sed command, I opted for the '^[^@]*$' approach, but james is correct that grep -v '@' matches as intended.

Thanks all, for your comments.
-- 
Duncan Hutty