If you have the disc space then the simplest option is a stream edit, kinda like this (untested code):

open (INFILE,"<infile.txt");
open (OUTFILE, ">outfile.txt);

while (<INFILE>) {
 # $_ will hold one line of your file, and the loop will (slowly) go t
+hrough your entire file
 
 #Mangle $_ here e.g.
 s/^\+host-1-3-1-10:/$ipnum/;

 #print it into the other file
 print OUTFILE $_;
}

[download]

Or variations on the above, to suit.

Update: I forgot about the ip bit. Depending on how many there are you could push them into a hash or use some database solution, as tilly didn't quite mention in the chatbox.

____________________
Jeremy
I didn't believe in evil until I dated it.

In reply to Re: Search and replace on a 130000+ line file. by jepri
in thread Search and replace on a 130000+ line file. by brendonc

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