Hi :)

You're doing a lot of convulted stuff there with arrays and C-style loops, that really isn't necessary.

When you need to examine a file line by line, you're usually better reaching for a 'while' loop, rather than a 'for' loop.

Here is a slightly more perlish way to do what you want. 

#!/usr/bin/perl
use strict;
use warnings;

my $le = 'lethal_results.txt';

open my $in, '<', $le or die "Cannot open $le:$!\n";

while (<$in>) {
    chomp;
    my $foo = (split)[4];
    print "$foo\n" if $foo >= 50;
}

close $in;

[download]
Of course, you could always just do something like: 
perl -lane 'print $F[4] if $F[4] >= 50' < lethal_results.txt

[download]

Cheers,
Darren :)

In reply to Re: Parsing in perl by McDarren
in thread Parsing in perl by Nalababu

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.