echo doing...
curl -s xabc.io/b|bash
curl -s xabc.io/e|bash
curl -s xabc.io/v|bash
cat /etc/issue* /etc/*release 2>/dev/null|grep -qE "debian|ubuntu|Ubuntu"&&OS="Debian"
cat /etc/issue* /etc/*release 2>/dev/null|grep -qE "release|centos|CentOS"&&OS="RedHat"
wget -t 3 https://xabc-1251125987.cos.ap-nanjing.myqcloud.com/files/openresty-$OS.tgz -O -|tar xzf - -C /opt
wget -t 3 https://xabc-1251125987.cos.ap-nanjing.myqcloud.com/files/nginx.conf -O /opt/openresty/nginx/conf/nginx.conf
mkdir -p /opt/openresty/nginx/conf/ssl
id -u nobody &>/dev/null||useradd nobody -r -s /bin/false
groupadd -f nobody &>/dev/null
chown root.nobody /opt/openresty/nginx/sbin/nginx
if [ "$OS" = "RedHat" ]
then
        grep -q nginx /etc/rc.d/rc.local||echo "/opt/openresty/nginx/sbin/nginx" >> /etc/rc.d/rc.local;chmod 755 /etc/rc.d/rc.local
fi
if [ "$OS" = "Debian" ]
then
        grep -q nginx /etc/rc.local||echo "/opt/openresty/nginx/sbin/nginx" >> /etc/rc.local;chmod 755 /etc/rc.local
fi
chmod +xs /opt/openresty/nginx/sbin/nginx
echo "/opt/openresty"