解压文件
    tar -zxf apache-tomcat-7.0.61.tar.gz
    拷贝到/opt/school目录下
    mkdir -p /opt/lucky
    cp -r apache-tomcat-7.0.61 /opt/school
    启动tomcat
    cd /opt/school/apache-tomcat-7.0.61/bin/
    ./startup.sh