利用linux shell脚本重启tomcat

川长思鸟来 2022-03-15 14:44 413阅读 0赞

在工作中遇到要使用ps -ef | grep tomcat6 来进程ID并kill掉后重启tomcat的场景

killRestart.sh

===============

\#!/bin/bash  
tomcat6pid=\`ps -ef|greptomcat6|grep\-v"grep"|awk'\{if($17=="-Dcatalina.home=/home/leekim/tomcat6")\{print $2\}\}'\`  
echo "$(date  '\+%Y-%m-%d %H:%M:%S')tomcat6 pid before kill is" $tomcat6pid >> /home/leekim/log/restartlog.txt  
if \[ $tomcat6pid != ""\]; then  
   kill \-9  $tomcat6pid   
   echo "$(date'\+%Y-%m-%d %H:%M:%S') kill -9" $tomcat6pid>> /home/leekim/log/restartlog.txt  
   sleep 6  
fi  
tomcat6pid=\`ps -ef|greptomcat6|grep\-v"grep"|awk'\{if($17=="-Dcatalina.home=/home/leekim/tomcat6")\{print $2\}\}'\`  
if \[ "$tomcat6pid" = "" \]; then  
   /home/leekim/tomcat6/bin/startup.sh  
   tomcat6pid=\`ps -ef|greptomcat6|grep\-v"grep"|awk'\{if($17=="-Dcatalina.home=/home/leekim/tomcat6")\{print $2\}\}'\`  
   echo "$(date'\+%Y-%m-%d %H:%M:%S')tomcat6 startup, new pid is "  $tomcat6pid >>  /home/leekim/log/restartlog.txt  
elif \[ "$tomcat6pid" !=""\]; then  
   echo "$(date  '\+%Y-%m-%d %H:%M:%S')tomcat6 kill -9 failure, pid is"$tomcat6pid>>/home/leekim/log/restartlog.txt  
fi

**注意:**

1. $17具体是什么值，请根据自己的真实环境配置，总会有个条件来过滤判断的，可能是$13、$14等等

2. awk中代码用\{\}括起来

awk '\{print $2\}'

awk '($17=="xxx")\{print $2\}'

awk '\{if($17=="xxx")\{print $2\}\}'

3. shell变量赋值等号左右两边没有空格

test=1

4.shell中if判断(=判相等，注意if和then之间的条件判断格式，主要是空格之类的)

if \[ xx != "" \]; then

echo "xx"

或