Consider the following instead:
use strict;
use warnings;
use autodie;
open my $FILE1, '<', 'input.txt';
open my $FILE2, '>', 'output.txt';
while (<$FILE1>) {
s/^HDR.{47}|FTR.+//;
print $FILE2 $_;
}
close $FILE1;
close $FILE2;
- autodie will trap the file i/o errors (you're not handling these, but you should)
- Use only lexical (my) file handles
- Use while to iterate through the file
- The two substitutions were combined into one
If FTR marks the footer to the end of the line, you can just use FTR.+ to remove it, since in your example there were only 30 characters left--including FTR. However, it's certainly OK to use FTR.{27}, if you prefer.
-
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.
|