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Top Forums Shell Programming and Scripting Help scripting to start, check, and restart processes Post 302533367 by MacG32 on Thursday 23rd of June 2011 12:15:10 PM
Old 06-23-2011
In my case, the -r only produces 1 additional chkscreen and java-daemon.sh process, and only 1 Java server process. When I changed the -r to -S, it kept making chkscreen and java-daemon.sh processes and no additional Java server processes. That's why I was trying to get and use the PIDs, using the second script in the OP.

If Java uses all of the machine's memory, then the screen will be terminated. I'll no longer be attached to it, so the check for being or not being attached may not be the approach needed. I'll try and use what you've kindly given me and integrate something to get and check the PIDs.

No need to be sorry and lose sleep over this. It'll get worked out eventually and I'll post the final tweaked results then. Below is what I'm using. Thanks a million for all of your help neutronscott.

chkscr
Code:
#!/bin/sh
# chkscr: checks if a screen session is running.

SESSION="server1"
DAEMON="screen -d -m -S $SESSION /home/*server*/*local*/jd.sh"

# does the session exist?
screen -r $SESSION -ls -q 2>&1 >/dev/null

if [ $? -le 10 ]; then
        echo "Restarting $DAEMON"
        $DAEMON
fi

jd.sh
Code:
#!/bin/sh
# jd.sh: restarts a stopped server.

while true; do
java *server variables*
wait
done

 

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IBUS-DAEMON(1)							   User Commands						    IBUS-DAEMON(1)

NAME
ibus-daemon - Intelligent Input Bus for Linux / Unix OS SYNOPSIS
ibus-daemon [OPTION]... DESCRIPTION
Help Options: -h, --help Show help options Application Options: -d, --daemonize run ibus as background process. -s, --single do not execute panel and config module. -x, --xim execute ibus XIM server. -n, --desktop=name specify the name of desktop session. [default=gnome] -p, --panel=cmdline specify the cmdline of panel program. -c, --config=cmdline specify the cmdline of config program. -a, --address=address specify the address of ibus daemon. -r, --replace if there is an old ibus-daemon is running, it will be replaced. -t, --re-scan force to re-scan components, and re-create registry cache. -o, --timeout=timeout [default is 2000] dbus reply timeout in milliseconds. -j, --monitor-timeout=timeout [default is 0] timeout of poll changes of engines in seconds. 0 to disable it. -m, --mem-profile enable memory profile, send SIGUSR2 to print out the memory profile. -v, --verbose verbose. SEE ALSO
ibus(7) ibus-daemon 1.3.1 April 2010 IBUS-DAEMON(1)
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