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Full Discussion: Redirecting STDERR to file and screen, STDOUT only to file
Top Forums Shell Programming and Scripting Redirecting STDERR to file and screen, STDOUT only to file Post 302698387 by thuranga on Monday 10th of September 2012 03:22:38 AM
Old 09-10-2012
Quote:
Originally Posted by bakunin

...

Code:
script 2>&1 1>/some/file | tee -a /some/file

This finally does what we want: output to <stdout> is put into "/some/file", output to <stderr> is being displayed before being appended to /some/file" too.

The only uncertainty left is that i am not sure if the exact sequence of the messages will be preserved, especially if there is high load and many messages. You will have to try that. I'll be tankful if you could post a follow-up telling us this.
Hi bakunin,
thank you for your notes! I tried your adjustments, but the STDOUT will always displayed on screen.

I need this for a cronjob. Actually everything (STDOUT & STDERR) is written to a log. But I want to get informed, when an error occurs.
 

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LEARN ABOUT CENTOS

test::output::tie

Test::Output::Tie(3)					User Contributed Perl Documentation				      Test::Output::Tie(3)

NAME

       Test::Output::Tie - module used by Test::Output to tie STDERR and STDOUT

DESCRIPTION

       You are probably more interested in reading Test::Output.

       This module is used to tie STDOUT and STDERR in Test::Output.

   Methods
       TIEHANDLE
	   The constructor for the class.

       PRINT
	   This method is called each time STDERR or STDOUT are printed to.

       PRINTF
	   This method is called each time STDERR or STDOUT are printed to with "printf".

       FILENO
       BINMODE
       read
	   This function is used to return all output printed to STDOUT or STDERR.

AUTHOR

       Currently maintained by brian d foy, "bdfoy@cpan.org".

       Shawn Sorichetti, "<ssoriche@cpan.org>"

SOURCE AVAILABILITY

       This module is in Github:

	       http://github.com/briandfoy/test-output/tree/master

COPYRIGHT &; LICENSE
       Currently maintained by brian d foy, "bdfoy@cpan.org".

       Copyright 2005-2008 Shawn Sorichetti, All Rights Reserved.

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

ACKNOWLEDGMENTS

       This code was taken from Test::Simple's TieOut.pm maintained Michael G Schwern. TieOut.pm was originally written by chromatic.

       Thanks for the idea and use of the code.

perl v5.16.3							    2011-04-22						      Test::Output::Tie(3)
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