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Full Discussion: perl : stdout is not return to screen
Top Forums Shell Programming and Scripting perl : stdout is not return to screen Post 302221856 by Alalush on Tuesday 5th of August 2008 11:30:53 AM
Old 08-05-2008
perl : stdout is not return to screen
Hello All,

I have a perl script , and the STDERR and additional FH is redirected to the STDOUT like below:
open STDOUT ,">>$log" or die "$! :: $log\n";
open STDERR ,">&STDOUT" or die "$! :: Can redirect STDERR to STDOUT\n";
select STDERR; $|=1;
open LOG ,">&STDOUT" or die "$! :: Can redirect LOG FH to STDOUT\n";
select LOG ; $|=1;
select STDOUT; $|=1;

Everything work fine but when I close this three FH as shown below:
$|=0;
close STDERR;
close LOG;
close STDOUT;
print "Done\n"

I expect to see my print "Done" on the screen , but oddly I don't.

Are anyone know what am I doing wrong ?
Your help will appreciated !

Thanks.


 

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LEARN ABOUT DEBIAN

log::handler::output::screen

Log::Handler::Output::Screen(3pm)			User Contributed Perl Documentation			 Log::Handler::Output::Screen(3pm)

NAME

       Log::Handler::Output::Screen - Log messages to the screen.

SYNOPSIS

	   use Log::Handler::Output::Screen;

	   my $screen = Log::Handler::Output::Screen->new(
	       log_to => "STDERR",
	       dump   => 1,
	   );

	   $screen->log($message);

DESCRIPTION

       This output module makes it possible to log messages to your screen.

METHODS

   new()
       Call "new()" to create a new Log::Handler::Output::Screen object.

       The following options are possible:

       log_to
	   Where do you want to log? Possible is: STDOUT, STDERR and WARN.

	   WARN means to call "warn()".

	   The default is STDOUT.

       dump
	   Set this option to 1 if you want that the message will be dumped with "Data::Dumper" to the screen.

   log()
       Call "log()" if you want to log a message to the screen.

       Example:

	   $screen->log("this message goes to the screen");

   validate()
       Validate a configuration.

   reload()
       Reload with a new configuration.

   errstr()
       This function returns the last error message.

PREREQUISITES

	   Data::Dumper
	   Params::Validate

EXPORTS

       No exports.

REPORT BUGS

       Please report all bugs to <jschulz.cpan(at)bloonix.de>.

       If you send me a mail then add Log::Handler into the subject.

AUTHOR

       Jonny Schulz <jschulz.cpan(at)bloonix.de>.

COPYRIGHT

       Copyright (C) 2007-2009 by Jonny Schulz. All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-11-21					 Log::Handler::Output::Screen(3pm)
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