Re: Possible Bug with -v grep flag

[Paolo Bonzini]

On 10/21/2011 10:42 PM, Ramos, Jaime (H USA) (EXT) wrote:
> Is it true there is a restriction on syntax such as
>
> grep -v a -v e -v i -v o -u T1.txt
>
> from my experimentation it seems as if I can only invoke one -v flag at
> once, without ANY other patterns, that we do want to match. To get
> functionality like this I'm having to use the pipe command |

-v is a boolean flag.  What you want is

grep -ve a -e e -e i -e o -e u T1.txt

Paolo