> On 20010403.1408, Cory Petkovsek said ...
>
> Yup.
>
> $ zgrep -i linux /usr/doc/HOWTO/en-txt/* | grep Network |grep Security
> /usr/doc/HOWTO/en-txt/Security-HOWTO.txt.gz: Linux Network Administrator's Guide By
>Olaf Kirch
>
> Try just one of the piped commands. Ie, just the zgrep command. Then the first two
>commands, and see the different results.
>
> > I often grep for words within a dir full of files and then want to
> > grep through the results of the first grep, but don't know if you can
> > grep the result of a grep without outputing it into a temp file.
>
> Reread what you are asking. Grep result of a grep [by] outputing to a temp file.
>Use stdout/stdin as your temp file by using the pipe.
>
> grok?
Let's see if I do...
$ grep string1 string2 filename(s)
will find those files that contain string1 _OR_ string2
whereas
$ grep string1 filename(s) | grep string2
will find those files that contain string1 _AND_ string2
Correct?
Thanks,
Rob
