PlexWatch 30 sec job

#!/bin/bash
SLEEPTIME="30"
PIDFILE="/tmp/plexWatchJob.pid"

if [ -f "$PIDFILE"  ]; then
        PID=$(cat $PIDFILE)
        if ps -p $PID > /dev/null; then
                echo "Job already running. Aborting."
                exit 1
        else
                echo "PID file existing, but Job not running. Starting..."
        fi
fi

echo "Starting job..."
echo $BASHPID > /tmp/plexWatchJob.pid

while [ -f "$PIDFILE"  ]; do
        sleep $SLEEPTIME
        /opt/plexWatch/plexWatch.pl
done

echo "Job ended."