There are several issues with your code (besides formatting : Use <code> tags):

You should print Headers before any other operation - this allows you to report error messages if necessary.

Remember that the $file location is relative to the web root.

Error check your file open, and report accordingly. 

print "Content-type:text/html\n\n"; # Or $cgi->header...

open(my $DF,'<',$file) or print $cgi->h1("Error opening $file:$!");

while (defined (my $line = <$DF>))
{
        print $line, $cgi->br();
}
close $DF;

[download]
UNTESTED.

Update: I just noticed this is a dup of 11102294. Please reap main node and all replies including this one.

2019-07-28 Athanasius reparented

                Time is an illusion perpetrated by the manufacturers of space.

In reply to Re: Need to print file contents on page by NetWallah
in thread Need to print file contents on page by coolsaurabh

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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