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							- #!/bin/bash
 
- #设置jar文件名
 
- APP_NAME=app.jar
 
- #使用说明,用来提示输入参数
 
- usage() {
 
- echo "Usage: sh 执行脚本.sh [start|stop|restart|status]"
 
- exit 1
 
- }
 
- #检查程序是否在运行
 
- is_exist(){
 
- pid=`ps -ef|grep $APP_NAME|grep -v grep|awk '{print $2}' `
 
- #如果不存在返回1,存在返回0
 
- if [ -z "${pid}" ]; then
 
- return 1
 
- else
 
- return 0
 
- fi
 
- }
 
- #启动方法
 
- start(){
 
- is_exist
 
- if [ $? -eq "0" ]; then
 
- echo "${APP_NAME} is already running. pid=${pid} ."
 
- else
 
- nohup java -Xms1024m -Xmx1024m -jar $APP_NAME > /dev/null 2>&1 &
 
- fi
 
- }
 
- #停止方法
 
- stop(){
 
- is_exist
 
- if [ $? -eq "0" ]; then
 
- kill -9 $pid
 
- else
 
- echo "${APP_NAME} is not running"
 
- fi
 
- }
 
- #输出运行状态
 
- status(){
 
- is_exist
 
- if [ $? -eq "0" ]; then
 
- echo "${APP_NAME} is running. Pid is ${pid}"
 
- else
 
- echo "${APP_NAME} is NOT running."
 
- fi
 
- }
 
- #重启
 
- restart(){
 
- stop
 
- start
 
- }
 
- #根据输入参数,选择执行对应方法,不输入则执行使用说明
 
- case "$1" in
 
- "start")
 
- start
 
- ;;
 
- "stop")
 
- stop
 
- ;;
 
- "status")
 
- status
 
- ;;
 
- "restart")
 
- restart
 
- ;;
 
- *)
 
- usage
 
- ;;
 
- esac
 
 
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