#!/usr/bin/env bash
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touch /var/local/mail.log
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currentIP=$(curl -s -4 whatismyip.akamai.com)
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historyIP=$(cat /var/local/mail.log)
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if [[ ${currentIP} = ${historyIP} ]];then
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echo '不发送邮件'
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echo '不发送邮件' >> /tmp/mail.log
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exit
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fi
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echo ${currentIP}|mail -s ${currentIP} xxx@163.com
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echo ${currentIP} > /var/local/mail.log
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