一个用了统计一个用了统计CPU 内存内存 硬盘硬盘 使用率的使用率的shell脚本脚本
代码如下:
#!/bin/bash
#This script is use for describle CPU Hard Memery Utilization
total=0
idle=0
system=0
user=0
nice=0
mem=0
vmexec=/usr/bin/vmstat
which sar > /dev/null 2>&1
if [ $? -ne 0 ]
then
ver=`vmstat -V | awk ‘{printf $3}’`
nice=0
temp=`vmstat 1 3 |tail -1`
user=`echo $temp |awk ‘{printf(“%s”,$13)}’`
system=`echo $temp |awk ‘{printf(“%s”,$14)}’`
idle=`echo $temp |awk ‘{printf(“%s”,$15)}’`
total=`echo|awk ‘{print (c1+c2)}’ c1=$system c2=$user`
fi
echo “#CPU Utilization#”
echo “Total CPU is already use: $total”
echo “CPU user is already use: $user”
echo “CPU system is already use: $system”
echo “CPU nice is already use: $nice”
echo “CPU idle is already use: $idle”
echo
root_use=$(df -lh | awk ‘NR==2’ | awk ‘{print $5}’)
dev_use=$(df -lh | awk ‘NR==3’ | awk ‘{print $5}’)
dev_shm_use=$(df -lh | awk ‘NR==4’ | awk ‘{print $5}’)
echo “#Hard Utilization#”
echo “/ is already use: $root_use”
echo “/dev is already use: $dev_use”
echo “/dev/shm is already use: $dev_shm_use”
echo
memery_used=$(free | awk ‘NR==2’ | awk ‘{print $3}’)
memery_all=$(free | awk ‘NR==2’ | awk ‘{print $2}’)
memery_percent=$(echo “scale=4;$memery_used / $memery_all” | bc)
percent_part1=$(echo $memery_percent | cut -c 2-3)
percent_part2=$(echo $memery_percent | cut -c 4-5)
echo “#Memery Utilization#”
echo “system memery is already use: $percent_part1.$percent_part2%”
swap_used=$(free | awk ‘NR==4’ | awk ‘{print $3}’)
swap_all=$(free | awk ‘NR==4’ | awk ‘{print $2}’)
swap_percent=$(echo “scale=4;$swap_used / $swap_all” | bc)
swap_part1=$(echo $swap_percent | cut -c 2-3)
swap_part2=$(echo $swap_percent | cut -c 4-5)
echo “swap memery is already use: $swap_part1.$swap_part2%”
echo
在开发CFS过程中需要对机器实时的内存，CPU，硬盘使用率进行监控，因为CFS跑在Linux机器上，可以利用Linux中一些相
应虚拟文件进行内存CPU使用率的计算，于是编写了以下脚本，很简单，但是很实用。
包含三个部分，分别为硬盘使用率，内存使用率和CPU使用率。
代码如下:
#!/bin/sh
#count cpu_used_rate,memory_used_rate,disk_used_rate
#@Jayson 2012-5
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