substitution problems using perl

[Nate]

On the Jax.PM jacksonville-pm-list;
Nate <catenate at yahoo.com> wrote -


Hello again JaxPM!

I moved to Silicon Valley and got a job as a sys admin and Perl
scripter at a web hosting company.

I'm really busy rebooting the 10 or so NT webservers all the time ;)
and
just monitoring the
Linux box that has been up and running for 234 days straight :)

Anyways, I'm converting some zone files using perl (to move to new IP's
in a
new location),
and I've already made changes in the min TTL in the files, and now I'm
changing the serial
numbers on each file, but I can't get it to line up like it did before.

I'd like to stick two tabs at the beginning of the replacement text.

here's what it looks like before the change:

<snip>
@        IN SOA    ns.comcity.com. webmaster.comcity.com. (
  99102901
   43200
   7200
   604800
   3600 )
</snip>

then I run at the (windoze port of) bash command line:
c:\>perl -pi.bak -e 's/^\t\t9\d*$/99110420/e' COMCITY.zone


and I get this:

<snip>
@        IN SOA    ns.comcity.com. webmaster.comcity.com. (
99110420
   43200
   7200
   604800
   3600 )
</snip>

Notice how I need the two tabs at the beggining?

I tried this:
c:\>perl -pi.bak -e 's/^\t\t9\d*$/\t\t99110420/e' COMCITY.zone

and this

c:\>perl -pi.bak -e 's/^(\t\t9\d*)$/"\t\t99110420"/e' COMCITY.zone

What's the right way? I'm sure it's easy, but I don't see the answer.


Please reply to me directly, I haven't subscribed this account to
JaxPM.


P.S. Here's an interesting one: what if I wanted to save the matched
number, and increment it by one?
Something like:
c:\>perl -pi.bak -e 's/^(\t\t9\d*)$/"$1++"/e' COMCITY.zone



=====
nate    catenate at yahoo.com
my infosec favorites -> www.geocities.com/catenate/
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