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Full Discussion: Lost redirecting stderr & stdout to 3 files - one each plus combined
Top Forums Shell Programming and Scripting Lost redirecting stderr & stdout to 3 files - one each plus combined Post 303010486 by MDominok on Tuesday 2nd of January 2018 08:39:54 AM
Old 01-02-2018
Lost redirecting stderr & stdout to 3 files - one each plus combined
Hi folks

I need/want to redirect output (stdout, stderr) from an exec call to separate files. One for stderr only and two(!) different (!) ones for the combined output of stderr and stdout.

After some research and testing i got this so far :

Code:
(( exec ${command} ${command_parameters} 3>&1 1>&2 2>&3 ) | tee -a ${FILE_LOG_TEMPORARY}.stderr ) >> ${FILE_LOG_TEMPORARY} 2>&1

So got my stderr and one stdout+stderr log files and only need a "copy" of FILE_LOG_TEMPORARY, sort of
Code:
(( exec ${command} ${command_parameters} 3>&1 1>&2  2>&3 ) | tee -a ${FILE_LOG_TEMPORARY}.stderr ) >>  ${FILE_LOG_TEMPORARY} 2>&1 | tee -a ${FILE_LOG_GLOBAL}

But lot's of monochrome '&'s, '>'s and 'tee's that are enganged in some sort of high speed rain dance in front of my eyes are keeping me from seeing the solution right now. 8-)

And yes, simply copying the file after exec finished is Plan B...
Plan A is to have (many) ${command}s log into a global file (for tail -f'ing) and single files for run control/archiving.

To make matters worse i need to run the script on Solaris(ksh88, which wont accept my "solution" above so far), SuSE (ksh93) and Redhat (ksh93).

Cheers and thanks for all hints!

Michael
 

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LEARN ABOUT DEBIAN

ompi-iof

OMPI-IOF(1)							     Open MPI							       OMPI-IOF(1)

NAME

       ompi-iof, orte-iof - Displays a copy of the output streams from a process.

       NOTE: ompi-iof, and orte-iof are exact synonyms for each other. Using any of the names will result in exactly identical behavior.

SYNOPSIS

       ompi-iof [ options ]

Options
       ompi-iof will display a copy of the indicated stdout, stderr, and/or stddiag streams from the designated process.

       -pid | --pid
		 The pid of the mpirun executing the process whose streams are to be copied

       -stdout | --stdout
		 Display a copy of the specified process' stdout. If no options are specified, this will act as the default

       -stderr | --stderr
		 Display a copy of the specified process' stderr.

       -stddiag | --stddiag
		 Display a copy of the specified process' stddiag.

       -rank | --rank
		 The rank of the process whose output is to be copied.

DESCRIPTION

       ompi-iof  displays  a copy of the indicated stdout, stderr, and/or stddiag streams from the designated process. At this time, a ctrl-C must
       be used to terminate the program.  The program will terminate cleanly, telling the associated mpirun to close the requested streams  before
       exiting.

SEE ALSO

       orterun(1)

1.4.5								   Feb 10, 2012 						       OMPI-IOF(1)
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