Hi

If you want the content in between 'begin' and 'end process' means try like this,

use strict;
my $string ='hfkjd
process jhk
start
begin
output1
output2
end process
scrap
hkl
process khfk
shoot
hooter
begin
output3
end process';

while($string=~/\bbegin((?:(?!end process).)*)end process/sg){
    print "IN:$1\n";
}
[download]

or tell us clearly what you really need and what you tried so far?

Punitha