监控内存利用率
应用free来剖析CPU应用信息
#!/bin/bashDATE=$(date +%F" "%H:%M)IP=$(ifconfig eth0 |awk -F '[ :]+' '/inet addr/{print $4}') MAIL="example@mail.com"TOTAL=$(free -m |awk '/Mem/{print $2}')USE=$(free -m |awk '/Mem/{print $3-$6-$7}')FREE=$(($TOTAL-$USE))# 内存小于1G发送报警邮件if [ $FREE -lt 1024 ]; then echo " Date: $DATE Host: $IP Problem: Total=$TOTAL,Use=$USE,Free=$FREE " | mail -s "Memory Monitor" $MAILfi
https://zhhll.icu/2021/linux/实用shell/监控内存利用率/
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