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cpu=`top -b -n 1 | grep -w Cpu | awk '{print$5}'| awk -F '%' '{printf"%d",$1}'`
if [ $cpu -le 50 ]
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echo "cpu: $((100 - cpu))%" > test.txt
mail -s "·þÎñÆ÷½ô¼±, CPUÕ¼ÓÃÂʹý¸ß£¡" yourmail@domail.com < test.txt
fi
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