catalina.sh : need combination from "start" and "run"

Shell Programming and Scripting
1

heya,

can someone help me with following problem.
i am not sure how far you know the catalina.sh script from tomcat. when i start my tomcat with "catalina.sh run" then the startup-process-output will be printed out on the console, but the tomcat process is started in current shell/session, so it will be stopped when i close my session or type strg+c.
when i start my tomcat with "catalina.sh start" tomcat will be started in own shell/session and all the output is redirected to catalina.out logfile.

now i need a combination of those two parameters. i want to start my tomcat with "start" option because of the own shell, BUT i wanna see the startup-process-output on the console while it's starting up.

i tried with tail -f catalina.out in my script, which worked perfectly but the tail -f is never ending my script, i need to stop it manually with STRG+C .. so i think the solution would be in the catalina.sh script

this is the part which is responsible for that two parameters "run" and "start" from catalina.sh ... i could not find out by myself what to do exactly with it

elif [ "$1" = "run" ]; then

  shift
  if [ "$1" = "-security" ] ; then
    echo "Using Security Manager"
    shift
    exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
      -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
      -Djava.security.manager \
      -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \
      -Dcatalina.base="$CATALINA_BASE" \
      -Dcatalina.home="$CATALINA_HOME" \
      -Djava.io.tmpdir="$CATALINA_TMPDIR" \
      org.apache.catalina.startup.Bootstrap "$@" start
  else
    exec "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
      -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
      -Dcatalina.base="$CATALINA_BASE" \
      -Dcatalina.home="$CATALINA_HOME" \
      -Djava.io.tmpdir="$CATALINA_TMPDIR" \
      org.apache.catalina.startup.Bootstrap "$@" start
  fi

elif [ "$1" = "start" ] ; then

  shift
  touch "$CATALINA_BASE"/logs/catalina.out
  if [ "$1" = "-security" ] ; then
    echo "Using Security Manager"
    shift
    "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
      -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
      -Djava.security.manager \
      -Djava.security.policy=="$CATALINA_BASE"/conf/catalina.policy \
      -Dcatalina.base="$CATALINA_BASE" \
      -Dcatalina.home="$CATALINA_HOME" \
      -Djava.io.tmpdir="$CATALINA_TMPDIR" \
      org.apache.catalina.startup.Bootstrap "$@" start \
      >> "$CATALINA_BASE"/logs/catalina.out 2>&1 &

      if [ ! -z "$CATALINA_PID" ]; then
        echo $! > $CATALINA_PID
      fi
  else
    "$_RUNJAVA" $JAVA_OPTS $CATALINA_OPTS \
      -Djava.endorsed.dirs="$JAVA_ENDORSED_DIRS" -classpath "$CLASSPATH" \
      -Dcatalina.base="$CATALINA_BASE" \
      -Dcatalina.home="$CATALINA_HOME" \
      -Djava.io.tmpdir="$CATALINA_TMPDIR" \
      org.apache.catalina.startup.Bootstrap "$@" start \
      >> "$CATALINA_BASE"/logs/catalina.out 2>&1 &

      if [ ! -z "$CATALINA_PID" ]; then
        echo $! > $CATALINA_PID
      fi
  fi
2

any ideas ?