62 lines
1.2 KiB
Bash
62 lines
1.2 KiB
Bash
#!/bin/bash
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PREVIP=$(cat /opt/utils/StoredIP)
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MAILFILE="Tempfile2"
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TRYCOUNT=10
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while [ TRUE ]; do
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if [ $TRYCOUNT -le 0 ]; then
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echo Error occured.
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exit 1
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fi
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CURRENTIP=$(curl --silent http://checkip.dyndns.org/|grep -Eo '([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])(\.([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])){3}')
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STATUS=$?
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sleep 5
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if [ ! $STATUS ]; then
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let TRYCOUNT-=1
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elif [ ! "$CURRENTIP" ]; then
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let TRYCOUNT-=1
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else
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break
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fi
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done
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if [ "$PREVIP" = "$CURRENTIP" ]
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then
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exit 0
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fi
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touch $MAILFILE
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exec 6>&1
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exec > $MAILFILE
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echo This is an auto generated mail to notify the server IP had updated:
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echo 這是一封自動發送的電郵，以通知服務器地址經已更新：
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echo
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echo Server Address:
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echo 服務器地址：
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echo $CURRENTIP
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echo
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echo
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echo Pleas do not reply to this email.
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echo 請勿回覆。
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echo If you have any questions, please feel free to contact tgckpg@gmail.com
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echo 如有任何疑問，請電郵至tgckpg@gmail.com
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echo
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echo Regards,
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echo 祝 安康
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echo Penguin 鵬兄
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echo
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echo
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echo $CURRENTIP > /opt/utils/StoredIP
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while read line
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do mutt -s "通知Notice: 服務器地址已變更New address for server." -- $line < $MAILFILE
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done < /opt/utils/mailList
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rm $MAILFILE
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