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Full Discussion: Print Error in Console and both Error & Output in Log file - UNIX
Top Forums UNIX for Beginners Questions & Answers Print Error in Console and both Error & Output in Log file - UNIX Post 303041090 by sarathy_a35 on Thursday 14th of November 2019 10:10:05 AM
Old 11-14-2019
Print Error in Console and both Error & Output in Log file - UNIX
I am writing a shell script with 2 run time arguments. During the execution if i got any error, then it needs to redirected to a error file and in console. Also both error and output to be redirected to a log file. But i am facing the below error.

Code:
#! /bin/sh

errExit ()
{
    errMsg=`cat $1.log >> "$1".err`
    cat "$1".err | tee /dev/fd/3    
   return
}

test()
{
logfile=$1
exec 3>&1 1>>"${logfile}".log 2>&1
echo "$1"
echo "$2"
echo " "
echo "#################################################"
echo "Hi Hello,This is first function"
echo "#################################################"
if [[ -z "$2" ]];
then 
errExit $logfile
return
else
#<some Commands Here>
fi
}

test_1()
{
logfile=$1
exec 3>&1 1>>"${logfile}".log 2>&1
echo "$1"
echo "$2"
echo " "
echo "#################################################"
echo "Hi Hello,This is second function"
echo "#################################################"
if [[ -z "$2" ]];
then 
errExit $logfile
return
else
#<some Commands Here>
fi
}

Error Message : Currently the error output is getting copied to err file and getting displayed in console too. But in log file the output and error message it getting redirected twice

I dont want to use set -x option.
Last edited by sarathy_a35; 11-14-2019 at 11:23 AM..
 

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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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