Welcome to the monastery, the preview page explains how to mark up text so that it is formatted correctly, you should use <code> tags around your code like this, I have added a few, hopefully helpful, comments 
use strict;   # these two lines will save you
use warnings; # endless head scratching

open(DAT, "text.txt"); # you open this file again in two lines
$data_file="<text.txt "; # three argument version of open is preferabl
+e
open(DAT, $data_file); # you should check the return value of open
@raw_data=<DAT>; #  Assumed this was what the line said
close(DAT);
foreach $student (@raw_data)
{
chomp($student);
($name,$roll_no,$class)=split(/\|/,$student);
print "The student $name bearing roll number $roll_no is in class $cla
+ss";
print "
\n";
}

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print "Good ",qw(night morning afternoon evening)[(localtime)[2]/6]," fellow monks."

In reply to Re: reading input from a file by Utilitarian
in thread reading input from a file by Hir@

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!
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    ] &#93;
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