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you can use the -i option to do inline proccessing of the file(s). Also, if you add an ext to -i ie: -i.bak your ariginal file will be preserved with a .bak extension

make sure you set the mode to binary

try:
printf %s, (split /\s/, $word)[0]

what have you done to accomplish your desire to write a perl script for this? What problems are you having?

what have you tried and what problems have you had? (Hint: grep won't split your files)

of course the pattern matches the OP's data. What was not explained in the original post is that he wanted a pattern for awk which does not support (?:) otherwise the pattern you supplied is simply a...

^contact people:(?:[^\.]*?\.[^\.]*)+

what have you tried, and what problems are you running into?

/^cn=([^,]*?),/

For the most part linux commands have "man" pages that are accessible by typing "man commandname" sans the quotes. At your prompt type man nslookup and the system documentation will display. You...

As Jim said try nslookup

Are you joking? This is NOT a free script service. If you need assistance with something you are working on show what you have done, indicate the problem (errors) you are having. Someone may at that...

check out 'man head' and 'man wc'

no this is not a free script writing service. If you like help in learning how to write your own, that would be appropriate.

check out "expect"

Changing a devices MAC address is generally a very bad idea. Only very experienced network engineers should consider it and only in very specific cases. A good rule of thumb is 'if you don't know how...

geewiz ~~ I would like a pony

This is not a free script writing site "come and get you dreams filled." What have you done to make this script happen?

A rather trivial task, what have you tried? Is this homework?

What does your script look like?

what have you tried?

check out Convert::IBM390 at cpan

First off you don't have $hello set to anything, you have $value = "hello" -- not the same.

You should:

use strict;
use warnings;

and all would be reveled.

try:


use strict;
use...