重要：已经放弃更新，请使用 https://github.com/SYHGroup/easy_shell/blob/master/ddns/dnspod-ddns.sh ---------------------dnspod.cn服务器ip更新脚本（使用dnspod ddns api，可更改ttl），需要bash，curl，grep，sed，不建议在openwrt使用。使用时修改以下信息：TokenID、Token、ddnspod your domain.com.----------rm dnspod.sh && wget --no-cache https://gist.githubusercontent.com/Jerry981028/215df9be2b513962c4aedf7d…

dnspod.sh

#!/usr/bin/env bash
#encoding=utf8
function logecho(){
  #若不需要记录日志注销下行。
  echo "$*" >> ${logfile}
  echo "$*"
}
function ddnspod(){
# Usage: ddnspod [subdomain] [domain]
  if [ $# == 2 ]
  then
    SubDomain="$1"
    Domain="$2"
    logecho "$(date):	dnspod update ${SubDomain}.${Domain}."
    oip=$(curl -s -X POST https://dnsapi.cn/Record.List -d "login_token=${TokenID},${Token}&format=json&domain=${Domain}&record_id=${RecordID}&sub_domain=${SubDomain}" | grep value | grep -o '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}')
    if [ "$oip" == "" ]  ; then
      logecho "Error:	Fail to connect to dnspod.cn."
      exit 1
    fi
    nip=$(curl -s http://members.3322.org/dyndns/getip)
    if [ "$nip" == "" ]  ; then
      logecho "Warning:	Fail to connect to members.3322.org. Ignore it."
    fi
    logecho "Old IP:	${oip}"
    if [ "$oip" == "$nip" ] 
    then
      logecho "IP hasn't been changed."
    else
      logecho "New IP:	${nip}"
      RecordID=$(curl -s -X POST https://dnsapi.cn/Record.List -d "login_token=${TokenID},${Token}&format=json&domain=${Domain}" | sed -n 's/.*"id":"\(.*\)","name":"'${SubDomain}'".*/\1/p')
      Result=$(curl -s -X POST https://dnsapi.cn/Record.Ddns -d "login_token=${TokenID},${Token}&format=json&domain=${Domain}&record_id=${RecordID}&record_line_id=0&sub_domain=${SubDomain}" | sed -n 's/.*"message":"\(.*\)","created_at".*/\1/p')
      logecho "DDNS:	${Result}"
      oip=$(curl -s -X POST https://dnsapi.cn/Record.List -d "login_token=${TokenID},${Token}&format=json&domain=${Domain}&record_id=${RecordID}&sub_domain=${SubDomain}" | grep value | grep -o '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}')
      if [ "$oip" == "" ]  ; then
        logecho "Error:	TTL can't be changed."
        exit 1
      elif [ "$oip" != "$nip" ] ; then
        logecho "Warning:	IP doesn't match.  [dnspod:${oip} , 3322.org:${nip}]"
      fi
      Result=$(curl -s -X POST https://dnsapi.cn/Record.Modify -d "login_token=${TokenID},${Token}&format=json&domain=${Domain}&record_id=${RecordID}&sub_domain=${SubDomain}&record_line_id=0&value=${oip}&record_type=A&ttl=${Ttl}" | sed -n 's/.*"message":"\(.*\)","created_at".*/\1/p')
      logecho "TTL:	${Result}"
    fi
  else
    logecho "Error:	function ddnspod: Argument error."
  fi
}
function checklogfile(){
  lines=$(sed -n '$=' ${logfile})
  if (( $lines > 200 )) ; then
    if [ -f ${logfile}.1 ] ; then
      rm ${logfile}.1
    fi
    mv $logfile ${logfile}.1
    touch $logfile
  fi
}
TokenID="*****"
Token="****************"
logfile="/var/log/dnspod-1.log"
Ttl=3600
#### example for your.domain.com ####
ddnspod your domain.com
#若不需要记录日志注销下行。
checklogfile
exit 0