Hi monks,
I am showing a sample part of my coding where I am finding a problem.
I used three argument open for opening files. I wrote some contents in a file test.txt as shown below.
After that I copied the same file with another name test1.txt and I did some replacements. But when I printed the output I didn't got any output in my console.
But when I added close function it was working fine.
AFAIK close function is not mandatory in Perl (that too in three arguments it ll close the handle automatically). Also for safer purpose I used three arguments open function as well.
What is going on here or am I missing something? While writing some data in file, won't it write in file? or will it have the output only in buffer in this scenario?
If it is a silly question or mistake, I apologise for that, because I tested the below code many times but not getting output.


use strict;
use warnings;
use File::Copy;

open (my $dbout_h, '>', "D:\\Projects\\test.txt") || die ("Unable to o
+pen/File not exists: $dboutfile\n"); #open file to write

print $dbout_h "<html><b>output - Table:</b><hr>\n<table border=2>\n";

my @arr  =( 1, 2, 3);

{
    local $" = '</td><td>';
    for (@arr) {

        next if (!@arr);
        print $dbout_h "<tr><td>@arr</td></tr>\n";    #print the resul
+ts in database output file        
    }
}

print $dbout_h "<\/table>\n<\/html>";

close ($dbout_h);

copy ( "D:\\Projects\\test.txt", "D:\\Projects\\test1.txt");

open (my $dbout1_h, '<', "D:\\Projects\\test1.txt") || die ("Unable to
+ open/File not exists: test1.txt\n"); #open file to write

my $file = do {local $/, <$dbout1_h>};

$file =~ s!<table!<tab!g;
$file =~ s!</table!</tab!g;
print $file;

[download]

Thanks in advance

Prasad

In reply to Question on Filehandle: close function by prasadbabu

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