timezone配置

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# timezone 设置为亚洲上海时区，时区统一配置，很重要的系统参数
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function timezone_check() {
echo ""
echo -e "033[32m ******************************* 33[0m"
echo -e "33[32m timezone_check, pass... 33[0m"
echo -e "33[32m ******************************* 33[0m"}
    local timezone=$(date -R | awk '{print $NF}')
    local timezfile="/usr/share/zoneinfo/Asia/Shanghai"
      if [ "$timezone" != "+0800" ]; then
        echo "System timezone is $timezone"
        if [ -e "/etc/localtime" ]; then
          mv /etc/localtime /etc/localtime.bak
        fi
        ln -s $timezfile /etc/localtime
        echo "System timezone change to $(date -R | awk '{print $NF}')"
      else
      echo "System timezone is $timezone(BeiJing) timezone"
      fi
}