[ale] FGrep matches and non matches to two seperate files

[Geoffrey]

Jonathan Chum wrote:
> I have a list of PostFix IDs in a file that I'm able to fgrep the initial
> maillog and return all entries matching the IDs in the list. I'd like to
> create two files with it though, one that contains the new maillog that
> matches the IDs listed in the file and another file that contains the old
> maillog without these lines.
> 
>  
> 
> Any idea how I would go about accomplishing this? Thanks.

Sounds like something begging for a perl script.  I don't know of any 
single tool that will do this in a single pass.

-- 
Until later, Geoffrey