Hi all, I have updated code as following, I wish to extract part of the text and write into another file. The loop of the code do not stop at my selected range of text. It read until the final match line of word. Please advise me. Thanks. For example, I need to extract the $ NAME: sandy until $$.TO and then join with the contents inside $NAME: patrick which is start from G1 until $$SRU. Any idea? 
Text:
$ NAME : corry   
$$.Inc s d  
$$.Oc s 
$$.TO

G1 ty n1 EE EE M T1 T2 $$SRU   
G2 n1 y OO OO M T3 T4 $$SRU   
.EON  

$ NAME : patrick  
$$.Inc c d
$$.Oc c 
$$.TO 

G1 td n3 EE EE M T5 T6 $$SRU    
G2 n3 y OO OO M T7 T8 $$SRU  
.EON 

$ NAME : sandy    
$$.Inc k l
$$.Oc l
$$.TO

G1 td n3 FF FF M R5 R6 $$SRU      
G2 n3 y OO OO N R7 R8 $$SRU    
.EON

[download]
Code:
use strict;
use warnings;

open my $F1, '<', 'testing.txt' or die "failed $!";
open my $F2, '>', 'out.txt' or die "failed $!";

while (<$F1>) {
if (/^\$ NAME : sandy/../\$.TO/) {
print $F2 $_;
}
if (/^\$ NAME : patrick/../\$.EON/) {
if(/^G1/../\$SRU){
 s/G1/G1.G1o.n/g;
print $F2 $_;}
}

 }
close $F1;
close $F2;

[download]

In reply to How to extract certain range of text and write into another file? by annel

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.