But I can't say what went wrong with what you are saying in your comments.

Please give full details on what you are trying: exact command line used, sample input files, OS on which you are working, any other thing worth of interest (such as warnings or errors).

Hi Laurent_R.

Over the past few days, I've been continuing to work on doing this in a perl script instead of a one-liner. I have made some progress. I does exactly what I want when the ip_addr file contains 1 ip address. I tested it again with 3, and it does the first ip address, and does not do the 2nd or 3rd. I figure if I can do it for 3, then I can do it for N ip addresses.

I'm doing this in Solaris 10, to answer your question. The current sate of the script is a mess with comments and print statements akimbo.

If this was vi, I'd be doing this:
:g/66.11.22.23/s/^/#/


The problem is that I have several hundred ip addresses. Thanks for the response, regardless.

Laurent_R quite properly asked for details -- "Please give full details on what you are trying: exact command line used, sample input files, OS on which you are working, any other thing worth of interest (such as warnings or errors)."

I would add show us the code as you've most recently modified it.

So far, you haven't done so. Please make it possible for us to help by following Laurent_R's suggestion.

As to processing hundreds of IPs in the file: read them into an array and iterate thru the array with your "(sic)do" command.


If I've misconstrued your question or the logic needed to answer it, I offer my apologies to all those electrons which were inconvenienced by the creation of this post.