使用bash shell 查看Linux系統的CPU和內存

#!/bin/bash

echo "********************************************"
echo "*         查看監控列表信息                 *"
echo ""

#打印CPU相關信息
cpu_model=`cat /proc/cpuinfo  |grep 'model name' |gawk -F : '{print $2}'`
echo "cpu model: $cpu_model "
cpu_cores=`cat /proc/cpuinfo |grep 'cpu cores'|gawk -F : '{print $2}'`
echo "cpu cores: $cpu_cores * core(s) "
cpu_usage=`top -n 1 |grep '%Cpu'|gawk -F : '{print $2}'|gawk  -F , '{print $1}'|sed 's/us//'`
echo "cpu usage: $cpu_usage"%""

#打印內存相關信息
memory_total=`free -h |grep -i mem |gawk -F : '{print $2}' |gawk '{print $1}'`
echo "memory total: $memory_total"
memory_total1=`free  |grep -i mem |gawk -F : '{print $2}' |gawk '{print $1}'`
memory_used=`free  |grep -i mem |gawk -F : '{print $2}' |gawk '{print $2}'`
memory_usage=`echo "scale=2; ($memory_used / $memory_total1)*100" | bc `
echo "memory usage: $memory_usage"%""

swap_total=`free -h |grep -i swap |gawk -F : '{print $2}' |gawk '{print $1}'`
echo "swap total: $swap_total"
swap_total1=`free  |grep -i swap |gawk -F : '{print $2}' |gawk '{print $1}'`
swap_used=`free  |grep -i swap |gawk -F : '{print $2}' |gawk '{print $2}'`
swap_usage=`echo "scale=2; ($swap_used / $swap_total1)*100" | bc `
echo "swap usage: $swap_usage"%""

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運行結果