You could use a counter, which is set to 1 when you reach START then reset to 0 when you reach END. As the counter will only be 1 between START and END, you can simply print out any lines where this is the case.
use strict;
my $count = 0;
open (IN, "input.txt");
while (<IN>) {
if (/START/) {
$count = 1;
}
elsif (/END/) {
$count = 0;
}
elsif ($count) {
print;
}
}
close IN;
Output:
These are the first
set of lines
which are to be extracted
These are the second
set of lines
which are to be extracted
I wasn't sure if the blank lines were intentional, but if you don't want them, change to
elsif ($count && $_ !~ /^$/)
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|