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Top Forums Shell Programming and Scripting Eval and get awk output assigned to variable Post 302945413 by RudiC on Friday 29th of May 2015 03:51:21 AM
Old 05-29-2015
Not quite clear.
Which command's exit code do you want to capture? $? is the last cmd's exit code and should always be 0 in above.
Where (and how) do you want to store whatever result you mean?
Why do you redirect stdout and stderr to /dev/null if you want some result?
Why do you use eval in above?
 

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SOLARPOWERLOG(1)														  SOLARPOWERLOG(1)

NAME
solarpowerlog - queries data from a photovoltaic inverter SYNOPSIS
solarpowerlog [options] DESCRIPTION
The program trackd and logd data from photovoltaic inverters, collect power data and store them. OPTIONS
The program follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. -h, --help Show summary of options. -v, --version Show version of program. -b, --background Runs the program in the background, detaching it from the console. -c, --conf filename The configuration to be used. Default is solarpowerlog.conf, looked for in the current directory. --dumpcfg Dump configuration structure, then exit --chdir arg working directory for daemon (only used when running as a daemon). Defaults to / --stdout arg redirect stdout to this file (only used when running as a daemon). Defaults to /dev/null --stderr arg redirect stderr to this file (only used when running as a daemon). Defaults to /dev/null --pidfile arg create a pidfile after the daemon has been started. (only used when running as a daemon). Default: no pid file SEE ALSO
http://sourceforge.net/apps/mediawiki/solarpowerlog/index.php June 16, 2009 SOLARPOWERLOG(1)
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