UNIX for Beginners Questions & Answers

rval=0
CONF_FILE=/apps/wmroot/scripts/props/UMPath.properties
NOHUP="nohup"
getProperty()
{
        prop_key=$1
        prop_file=$2
        prop_value=`cat ${prop_file} | grep ${prop_key} | cut -d'=' -f2`

}
#get properties
getProperty "value.UMPath" ${CONF_FILE}
UMPath=${prop_value}
echo "$UMPath"
# Clear any currently running tail commands which will cause the loop below to fail
ps -ef|grep -v grep|grep tail|grep $UMPath|grep nirvana.log > /dev/null
if (( $? == 0 )); then
   echo -e "\nClearing the following tail commands:"
   ps -ef|grep -v grep|grep tail|grep $UMPath|grep nirvana.log
   ps -ef|grep -v grep|grep tail|grep $UMPath|grep nirvana.log|awk '{print $2}' | xargs kill -9
fi
#Finding the nserver.pid to see if UM is up

SERVER_PID=$UMPath/bin/nserver.pid

echo "Check if UM Server is running or not"

 if [ -f $SERVER_PID ] ; then
       echo "UM Server is running.."
exit $rval
 else
        echo "UM Server is down, starting it up"
        su - wmroot -c "${NOHUP} "$UMPath/bin/nserver" &"
 fi
# Watch the log file for the initialization string
getline()
{
echo -e "\nNow watching nirvana log for the Started Nirvana Realm string\c"
tail -f $UMPath/data/nirvana.log | while read line
do
    echo ${line} | egrep "Realm Server Startup sequence completed" > /dev/null 2>&1
  if (( $? == 0 )); then
     echo -e "\nFound: ${line}\n"
echo "UM is now up and running"
retcd=0
return $retcd;
exit $retcd
  fi
 echo ${line} | egrep "Server shutdown" > /dev/null 2>&1
  if (( $? == 0 )); then
     echo -e "\nFound: ${line}\n"
echo "UM failed to start. Please check"
retcd=1
return $retcd;
exit $retcd
  fi
done
}
getline
if [ "$retcd" = 0 ]
then
echo "server is now up"
else
echo "Server has been shutdown due to an error, please check"
fi
exit $rval