Linux startup script jar

Linux startup script to back up what jar

#! / bin / bash 
# here can be replaced with your own implementation of the program, other code without changing 
APP_NAME = Health-Card-Web-1.0 .jar 
cd `dirname $ 0 ` 
# instructions, to enter the argument 
usage () { 
    echo "Usage: SH execute the script .sh [Start | STOP | restart | Status]" 
    Exit 1 
} 
# check program is running 
is_exist () { 
  pid = `PS -ef | grep $ APP_NAME | grep -v grep | awk 'Print $ {2}' ` 
  # returns 1 if there is, exists returns 0 
  IF [the -Z" PID $ {} " ]; the then
    return 1
   the else 
    return 0 
  Fi 
} 
 
# startup method 
start () { 
  is_exist 
  IF [ $? -eq "0" ]; then
    echo "${APP_NAME} is already running. pid=${pid} ."
  else
    nohup java -jar $APP_NAME > /dev/null 2>&1 &
    echo "${APP_NAME} is start success"
    #tail -f fileserver-web.out
  fi
}
 
#停止方法
stop(){
  is_exist
  if [ $? -eq "0" ]; then
    kill -9 $pid
    echo "${APP_NAME} is  stoped"
  else
    echo "${APP_NAME} is not running"
  is_exist
Status () {
# output running state
}
  Fi
 
  IF [? $ -eq "0" ]; the then 
    echo . "$ {APP_NAME} IS running IS the Pid PID $ {}"
   the else 
    echo . "$ {IS} APP_NAME the NOT running" 
  Fi 
} 
 
# restart 
the restart () { 
  STOP 
  Start 
} 
 
# the input parameter, performing the corresponding selected method is performed without input instructions 
Case "$. 1" in
   "Start" ) 
    Start 
    ;;
   "STOP" ) 
    STOP 
    ;;
   "Status" ) 
    Status 
    ;;
   "the restart" ) 
    the restart 
    ;;
   * ) 
    Usage 
    ;;
esac