最小化centos 安裝基礎命令：
常用的基礎命令如下
yum install vim iotop bc gcc gcc-c++ glibc glibc-devel pcre \ pcre-devel openssl openssl-devel zip unzip zlib-devel net-tools \ lrzsz tree ntpdate telnet lsof tcpdump wget libevent libevent-devel \ bc systemd-devel bash-completion traceroute -y