use strict;
use warnings;
use diagnostics;
use Modern::Perl;
undef $/;
open my $FH, '<', '/home/james/andrew/Perl_file.txt' or die "Could not
+ open file= $!";

foreach(my $line =  <$FH>) {
    $line =~ s/\s+//gs;
    my $char_a = substr($line, 0, 2);
    my $char_b = substr($line,2,2);
    print $char_a;
    print $char_b;
}

[download]
output: ra mm in my file have data like ramm lary why my loop doesn't work for lary..please let us me know

In reply to How to perform single operation to each line in file by rammohan

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.