一些脚本程序的备考

一些脚本程序的备注

1、关于linux启动应用程序脚本，自动获取PID并存入文件

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#!/bin/bashDIRNAME=`dirname $0`AppRoot=`cd $DIRNAME/../App; pwd`pid=$AppRoot/pid_0if [ -s $pid ] && kill -0 `cat $pid` 2>/dev/nullthenecho "[Warning: Service is Running Now]"elseecho "[Sevice Starting...]""$JAVA" XXX.jar 2>> /dev/null & echo $! > $pidfi

?2、对应关闭脚本

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#!/bin/bashDIRNAME=`dirname $0`AppRoot=`cd $DIRNAME/../App; pwd`pid=$AppRoot/pid_0echo "Shutdown Service..."kill -9 `cat $pid`

3.java程序内获取当前应用PID

FileWriter fw = null;try {String name = ManagementFactory.getRuntimeMXBean().getName();String pid = name.split("@")[0];File directory = new File("");//设定为当前文件夹String path = directory.getAbsolutePath();fw = new FileWriter(path + "/pid_0");fw.write(pid);fw.flush();} catch (IOException e) {logger.fatal(e);} finally {try {if (null != fw) {fw.close();}} catch (IOException e) {logger.fatal(e);}}

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