grep'ing tips (was: Re: [NTLUG:Discuss] tap[0-9]* modules? )

[Chris Cox]

Rusty Haddock wrote:
> 
> Rick Cook wrote:
>     >
>     >>> As is so common with Unixes (or Uni?) there is yet another way to handle
>     >>> this situation.  Try out the following (which doesn't include backticks):
>     >>>
>     >>>         find . -type f -print | xargs egrep tap0
>     >
>     >or, alternatively:
>     >
>     >   find . -type f -exec egrep tap0 {} \;
>     >
>     >This way, egrep gets one filename at a time...
> 
> For a small number of files, this would be OK, but I wouldn't want "egrep"
> to start up 10,000 times, once for each of my files -- cache or no cache.

Doesn't work that way....grep will be invoked on a set of files....read
the manpage.

If you want to fire up grep for each file you'll need the -n1 parameter.

Regards,
Chris