Shell Programming and Scripting

#! /bin/ksh

PATH=/usr/bin:/bin:/usr/sbin:/sbin

endtime=$(date +%H":"%M)  ## assumes endtime is exactly 24 hours after starttime

processfile(){
     curtime=$(date +%H":"%M)
     if [ "$curtime" != "$endtime" ]     ## checks that current time is not same as endtime
     then
           some_command &      ## put your actual command block here
           mpid=$(ps -ef | grep "some_command" | awk '{print $2}')
           sleep 3600                ## wait an hour
      else
           kill -9 $mpid > /dev/null     ## kill background process id
           mv /dir/file /dir1/file.$(date +%Y%m%d)
           sleep 60 # <-- adjust to make sure starttime is not equal to endtime
           processfile    ## call back function to restart processing over again
      fi
}

processfile ## start function to generate and move file

exit 0