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Top Forums Shell Programming and Scripting Shell Script to launch C program Post 302409530 by rwuerth on Thursday 1st of April 2010 11:51:49 AM
Old 04-01-2010
Taking the code you had and reworking it a little, and adding another case statement and prompt you could do this:

Code:
while true; do
read -p "please enter the file you wish to monitor" fname
read -p "are you sure you want to monitor the file: $fname? (Y/N)" yn

  case $yn in
    [Yy]) if [ -d $fname ]; then 
              ./desktop/monitor $fname &
              echo "monitor for $fname launched."
            fi;;

    *) echo "exiting script" 
        exit;;
  esac

  # if you got here, you've launched a monitor
  # so ask if another one should be launched

  read -p "Do you want to launch another monitor? (Y/N)" yn

  case $yn in
      [Yy]) ;;         # leave case statement and continues the while loop
           *) echo "Exiting script"
               exit ;;
  esac

done

Basically you only handle the [Yy] condition in the case statements anything else exits the script. You can handle the [Nn] condition if you really want to, but what should happen if the user picks something other than [Yy] or [Nn]? The '*' is the default action if none of the other actions enumerated are picked. Since I've only enumerated the [Yy] anything else will exit the script.
 

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TORRUS_MONITOR(8)						      torrus							 TORRUS_MONITOR(8)

NAME
monitor - Torrus Monitor. SYNOPSIS
torrus monitor --tree=TREENAME [options...] DESCRIPTION
This command starts the Monitor process for the tree TREENAME. By default it forks into a daemon, sets the log output file to /var/log/torrus/monitor.TREENAME.log, performs one monitoring cycle, and sleeps until the next cycle is scheduled. In daemon mode the log file can be reopened by sending it a SIGHUP signal. OPTIONS
--nodaemon Prevents the process from becoming a daemon and sets the log to STDERR. --runonce Instructs the script to run once and exit. Implies --nodaemon. --delay=N Makes the daemon sleep for N minutes before starting the first cycle. This would happen on the daemon startup and also after each configuration recompilation. For example, when monitor and collector start simultaneously, the collector needs some time to retrieve the data being monitored. --debug Sets the log level to debug. --verbose Sets the debug level to info. --help Displays a help message. FILES
/etc/torrus/conf/torrus-siteconfig.pl Torrus site configuration script. /var/log/torrus/monitor.TREENAME.log Monitor's log for the tree TREENAME. SEE ALSO
torrus(8) NOTES
See more documentation at Torrus home page: http://torrus.org AUTHOR
Stanislav Sinyagin <ssinyagin@yahoo.com> torrus 2.03 2013-07-26 TORRUS_MONITOR(8)
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