如何在linux中编写shell启动脚本

[root@VM-16-3-centos scripts]# cat > startFile.sh
 

[root@VM-16-3-centos scripts]# chmod -R 777 startFile.sh

主体包括四个操作: 1.加载配置  2.停止进程 3.连接数据库(如果服务需要)  4.启动进程

5.查看应用是否正常运行 

具体内容如下:

#!/bin/bash    
echo "===========ip: `ifconfig | awk 'NR==2{print $2}'` hostname:`hostname`==============="
JAVA_PATH=/opt/Java/jdk1.8.0_211/bin/java
WAR_PATH=/home/acptuser/services-war/file
cd /home/acptuser/services-war/file
WAR_NAME=`ls *file*|awk 'NR==1{print}'`

#停止进程
SERVER_PID=`ps -ef | grep ${WAR_NAME} | grep -v grep | awk '{print $2}'`
if [ ${SERVER_PID} ]; then
    echo "will kill $SERVER_PID"
    KILL -9 ${SERVER_PID}
else
    echo "${WAR_NAME} not running"
fi

#加密数据库密码
JASYPT_JAR=/home/acptuser/services-war/file/jasypt-1.9.2.jar

KEY=*****************

#数据库密码
ENCRIPTED_PWD=**************

#启动进程
if [ -e ${WAR_PATH}/${WAR_NAME} ]; then
    cd ${WAR_PATH}
    ${JAVA_PATH} -Xmx1024m -XX:+UseGlGC    -jar ${WAR_NAME} - -spring.profiles.active=prod - -Dspring.config.loaction=applic
ation-prod.yml - -spring.datasource.password="ENC("${ENCRIPTED_PWD}")" - -jasypt.encryptor.password=${KEY}>>run.log 2>&1 &
    echo "started"
else
    echo "${WAR_PATH}/${WAR_NAME} is not exist"
    exit 1
fi

#查看应用
sleep 20s
SERVER_PID=`ps -ef | grep ${WAR_NAME} | grep -v grep | awk '{print $2}'`
if [ ${SERVER_PID} ]; then
    echo "${WAR_NAME} is running, PID=${SERVER_PID}"
else
    echo "${WAR_NAME} is not running"
    exit 1
fi

如图所示:

4.启动脚本即可,等一分钟左右,再测试服务

$./startFile.sh