linux下bash脚本收集CPU和内存使用率超过阀值发送报警邮件到邮箱
#!/bin/bash #####内存使用情况
#author Merci
#客户端资源使用情况收集
####检测mailx
MAILXISEXIST=`rpm -qa | grep 'mailx'`
if [ ! $MAILXISEXIST ]
then
yum install mailx -y
fi
####CPU使用情况###
UsedCpuInfo=`sar -u 1 5 | grep 'Average' | awk '{print $3}'`
CpuUsedRate=`awk 'BEGIN{printf "%.0f\n",'${UsedCpuInfo}'}'`
#echo ${CpuUsedRate}
if [ "$CpuUsedRate" -gt 80 ]
then
echo "Cpu used rate Exceed threshold ！！！ $CpuUsedRate" | mailx -s "Cpu Excessive！" shevechco@qq.com
fi
MemTotalInfo=`cat /proc/meminfo | grep 'MemTotal' | awk '{print $2}'`
#echo ${MemTotalInfo}
MemFreeInfo=`cat /proc/meminfo | grep 'MemFree' | awk '{print $2}'`
#echo ${MemFreeInfo}
MemUsedInfo=`expr ${MemTotalInfo} - ${MemFreeInfo}`
#echo ${MemUsedInfo}
MemUserdRate=`awk 'BEGIN{printf "%.0f\n",'${MemUsedInfo}'/'${MemTotalInfo}'*100}'`
#echo ${MemUserdRate}
if [ "$MemUserdRate" -gt 80 ]
then
echo "Memory used rate Exceed threshold ！！！ $MemUserdRate" | mailx -s "Memory Excessive！" shevechco@qq.com
fi
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