Good point! Both of them. That would make a not-so-quick
but better hack. Append a timestamp and a start note /
end note with exit code to a log file, to have a history.
You might also send an email in case of a crash. Let's
see ...
#!/bin/sh
while true
do
start_your_program
RC=$? # return code
if [ $RC -gt 0 ]
then
date >> /var/log/your_log_file
echo "ABNORMAL program termination, rc = $RC" >> /var/log/your_log
+_file
echo "terminated at `date`, restarting | mail -s "Problem with zzz
+" root
sleep xxx
else
date >> /var/log/your_log_file
echo "Normal program termination, rc = $RC" >> /var/log/your_log_f
+ile
sleep yyy
fi
done
You can do further checking on the exit code as Mark suggested
and act diffently according to the exit code (see case
statement in your shell manual).
Andreas