I have the follwing code which extracts data from a file containing 30 data sets having the following pattern (see code). The problem is that it outputs the data in a very long list, I have no idea where the first data set finishes and the second starts.
I need to modify this code so that each time the code sees the string ' Final graph set matrix' it extracts the data (pattern as given in the code) up until it sees the string ' PLUTO4 finished'.
It should then break out the loop and start over separating each block of data by a new line or title e.g. data set1 ..... data setn.
If interested I could send the file from which I am working from.

cheers harry 
#!/usr/local/bin/perl 

$in_filename = "graph_set.out";
open (IN,"$in_filename") or die "Can't open $in_filename:$!\n";
local $/ = undef;       # undef record seperator
my $string = <IN>;         # read whole file into string    
close (IN);

my @gset_match = ($string =~ /([A-Z]\s\d+,\s\d+\(\s*\d+\))/g);

open (TEXT, ">graph_set.txt") or die "Can't create graph_set.txt: $!\n
+";
foreach $_(@gset_match) { print TEXT "$_\n"; }
close TEXT;

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In reply to pattern matching between two specific strings by harry34

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