start/stop linux scripts

#!/bin/sh

export APP_CODE=apm

export APP_HOME=/usr/local/clo/app/ffo/rtns_adapter
export APP_JCLASS_HOME=${APP_HOME}/jclass

export SHUTDOWN_TIME=10

export JAVA_HOME=/usr/local/clo/ven/jdk1.6.0_45-64
export PW_MATRIX=/usr/local/ccms/security/.PASSWORD_MATRIX
export PW_MATRIX_LIB=/usr/local/ccms/security/jclass/pwm
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/ccms/lib
export CLASSPATH=/usr/local/ccms/security/jclass/pwm/PwMatrix.jar:${APP_HOME}/jclass/*

case "$OEC_ENV" in
"DEV1"*)
export ENV=dev
;;
"UA1"*)
export ENV=uat
;;
"PROD"*)
export ENV=prod
;;
*) echo "Unable to find ENV definition, RTNS Adapter exit.";;
esac

export CFGPATH=/usr/local/clo/app/deploy/cfg/adapter-GMBT-${ENV}.properties

MAIN_CLASS=com.ssc.ssgm.fx.rtns.adapter.RTNSAdapterMain
pid=""

getpid() {
pid=`ps -ef | grep java | grep ${MAIN_CLASS} | grep ${TCID} | grep ${CFGPATH} | grep ${ENV} | awk '{print $2}'`
}

start() {
echo "Starting RTNSAdatper for TCID ${TCID}..."
getpid
if [ "X${pid}" = "X" ]
then
nohup $JAVA_HOME/bin/java -cp ${CLASSPATH} -Denv=${ENV} ${MAIN_CLASS} ${TCID} ${CFGPATH} &
getpid
if [ "X${pid}" = "X" ]
then
echo "Failed to start RTNSAdapter for ${TCID}"
else
echo "RTNSAdatper for ${TCID} is running. PID is ${pid}"
fi

else
echo "RTNSAdatper is already running."
exit 1
fi
}

stop() {
echo "Stopping RTNSAdapter for TCID ${TCID}..."
getpid
if [ "X${pid}" = "X" ]
then
echo "RTNSAdapter is not running."
else
kill ${pid}
sleep $SHUTDOWN_TIME

getpid

if [ "X${pid}" = "X" ]
then
echo "Stopped RTNSAdapter."
else
echo "Failed to stop RTNSAdapter."
exit 1
fi
fi
}

usage() {
echo "Usage: $0 { start | stop | restart }"
exit 1
}

if [ "$#" -ne 1 ]
then
usage
exit 1
else
if [ "${ENV}" = "prod" ]
then
export TCID="GMBH"
else
export TCID="GMBT"
fi

case "$1" in
'start')
start
;;
'stop')
stop
;;
'restart')
stop
start
;;
*)
usage
;;
esac
exit 0
fi