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Top Forums Shell Programming and Scripting Monitoring processes in parallel and process log file after process exits Post 303003307 by rbatte1 on Tuesday 12th of September 2017 06:19:42 AM
Old 09-12-2017
I think that this might be the wait and following commands. They are all serial, i.e. you wait and then do something for each PID in sequence.

You might need to do something more like this:-

Code:
while read PID OPFILE
do
    (wait $PID ; process_OPFILE $OPFILE ) &
done < pid_pfile.txt              # Read each line of the file in a loop

wait    # Make sure all have completed before continuing to any end of script process.

This would create a watcher for each main process that you want to process the report on afterwards. You can see that I read the two variables from the file at the same time at the start of the loop and you can then use them as you wish. This is just an example. Writing a function for process_OPFILE to keep the code neater if you have a lot to do.

Additionally, I've seen you try a sed of a file writing the output to the same file. Whilst probably no longer required, this will fail because the redirector > will open and empty the file before you have had chance to read it. If you want to update a file like this, try:-
Code:
sed -i "/$DPID/d" pid_pfile.txt



Does this help you?



Robin
 

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WMANAGER(1)						    BSD General Commands Manual 					       WMANAGER(1)

NAME
wmanager -- choose a window manager and launch it SYNOPSIS
wmanager [OPTIONS ...] DESCRIPTION
The wmanager program displays a choice of the window managers listed in the ~/.wmanagerrc file. When one is picked, the related command is written to standard output, intended to be used by shell scripts. If the program is exited without choosing a window manager, ``-1'' is written to standard output. -fg COLOR Set the foreground color. -bg COLOR Set the background color. -bg2 COLOR Set the widget background color -di[splay] host:n.n Set the X display. -dn[d], -nod[nd] Enable/disable drag & drop, probably does nothing. -g[eometry] WxH+X+Y Set the window size and location. -i[conic] Start as iconified. -k[bd], -nok[bd] Enable/disable keyboard support. -na[me] CLASSNAME Set the X window class. -s[cheme] SCHEME Unknown, probably does nothing useful. -ti[tle] WINDOWTITLE Set the window title. -to[oltips], -not[ooltips] Enable/disable tooltips, probably does nothing. EXAMPLE
To start using wmanager, create a ~/.wmanagerrc file - generally with wmanagerrc-update(1) - and add something like the following at the end of your ~/.xsession file: WM="$(wmanager -geometry +570+585)" ... exec $WM See also wmanager-loop(1) for a nicer way to start wmanager. SEE ALSO
wmanager(1), wmanager-loop(1), wmanagerrc-update(1), X(7x) HISTORY
The wmanager program was written by Meik Tessmer in 1999. This manual page was originally written in perldoc format by Tommi Virtanen in 2000, and converted to mdoc format by Peter Pentchev in 2008. AUTHORS
The wmanager program - Meik Tessmer <fuller@daemogorgon.net>. The manual page - Tommi Virtanen <tv@debian.org> and Peter Pentchev <roam@ringlet.net>. BSD
May 22, 2008 BSD
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