shell CPU
tags: 监控
1. CPU 使用率
CPU.sh
MAX=95 EMAIL=server@127.0.0.1 USE=$(grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage ""}') USE=`printf "%.0f\n" $USE` if [[ $USE -gt $MAX ]]; then echo "Percent used: $USE" | mail -s "Running out of CPU power" $EMAIL else echo "all is well !" fi
执行：
$ bash CPU.sh all is well !
2. CPU 检查
#!/bin/bash ################################################################################# # ActiveXperts Network Monitor - Shell script checks # # For more information about ActiveXperts Network Monitor and SSH, please # visit the online ActiveXperts Network Monitor Shell Script Guidelines at: # https://www.activexperts.com/support/network-monitor/online/linux/ ################################################################################# # Script # cpu.sh # Description # Checks CPU usage on the computer. # Declare Parameters # 1) nMaxCpuUsage (number) - maximum allowed CPU usage (%) # Usage # cpu.sh nMaxCpuUsage # Sample # cpu.sh 70 ################################################################################# nMaxCpuUsage=$1 # Validate number of arguments if [ $# -ne 1 ] ; then echo "UNCERTAIN: Invalid number of arguments - Usage: cpu nMaxCpuUsage" exit 1 fi # Validate numeric parameter nMaxCpuUsage regExpNumber='^[0-9]+$' if ! [[ $1 =~ $regExpNumber ]] ; then echo "UNCERTAIN: Invalid argument: nMaxCpuUsage (number expected)" exit 1 fi # Check the CPU usage nCpuLoadPercentage=`ps -A -o pcpu | tail -n+2 | paste -sd+ | bc` nCpuLoadPercentage=$( echo "$nCpuLoadPercentage / 1" | bc ) if [ $nCpuLoadPercentage -le $nMaxCpuUsage ] ; then echo "SUCCESS: CPU usage is [$nCpuLoadPercentage%], minimum allowed=[$1%] DATA:$nCpuLoadPercentage" else echo "ERROR: CPU usage is [$nCpuLoadPercentage%], minimum allowed=[$1%] DATA:$nCpuLoadPercentage" fi exit 0
执行
$ bash nmaxcpu.sh 70 SUCCESS: CPU usage is [0%], minimum allowed=[70%] DATA:0 $ bash nmaxcpu.sh 80 SUCCESS: CPU usage is [0%], minimum allowed=[80%] DATA:0
更多阅读：
