shell脚本制作菜单选择

#!/bin/bash
source ~/.bashrc
echo "----------------------------------"
echo -e "\033[35m JAR包名称序号\033[0m"
echo "(1) gateway-two.jar"
echo "(0) Exit Menu"
echo "----------------------------------"
read -p "请输入要重新启动的JAR包序列号：" input
case $input in
    1)
    echo "开始启动gateway-two.jar"
    sleep 1
    jar=gateway-two
    docker exec -it jar bash -c "sed -i '/jar/d' /root/.bashrc"                     #删除/root/.bashrc文件的最后一行，以防下面叠加echo时不断增大
    docker exec -it jar bash -c "echo 'export jar=$jar' >> /root/.bashrc"            #把变量从宿主机外部传进docker容器内部
docker exec -i jar bash<<'EOF'
    source /root/.bashrc                                                            #使之前传进来的变量生效，因为下面会用到
    pid=`ps -ef|grep ${jar}.jar|grep -v grep|awk '{print $2}'`                      #获取jar程序PID号
    cd /vrgv/jar/2.0/$jar/
    if [ -n "${pid}" ];then
            kill -9 ${pid}
            echo "Process $jar killed!"
               nohup java  -jar -Xms265M  -Xmx512M  ${jar}.jar > /vrgv/jar/2.0/logs/${jar}.log 2>&1 &    
            echo "ReStart $jar Success!"
    else
               nohup java  -jar -Xms265M  -Xmx512M  ${jar}.jar  > /vrgv/jar/2.0/logs/${jar}.log 2>&1 &
            echo "Start $jar Success!"
    fi
    exit
EOF
;;
      0)
      exit;;
esac