一个用了统计CPU 内存 硬盘 使用率的shell脚本

复制代码

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(“%sn”,$13)}`

  system=`echo $temp |awk {printf(“%sn”,$14)}`

idle=`echo $temp |awk {printf(“%sn”,$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。

复制代码

代码如下:

 #!/bin/sh

#count cpu_used_rate,memory_used_rate,disk_used_rate

#@Jayson 2012-5

#disk_used_rate

#Depend on real storage place the parameter Location need to alter.

#本人文件主要存储于sda8分区，所以以此提取。

Location=/dev/sda8

Disk_Used_Rate=$(df -h | grep $Location | awk {print $5})

echo $Disk_Used_Rate

#memory_used_rate

LoadMemory=$(cat /proc/meminfo | awk {print $2})

Total=$(echo $LoadMemory | awk {print $1})

Free1=$(echo $LoadMemory | awk {print $2})

Free2=$(echo $LoadMemory | awk {print $3})

Free3=$(echo $LoadMemory | awk {print $4})

Used=`expr $Total – $Free1 – $Free2 – $Free3`

Used_Rate=`expr  $Used/$Total*100 | bc -l`

Memory_Used_Rate=`expr  $Used_Rate/1 | bc`

echo $Memory_Used_Rate%

#cpu_used_rate

Log1=$(cat /proc/stat | grep cpu | awk {print $2″ “$3” “$4” “$5” “$6” “$7” “$8})

Sys1=$(echo $Log1 | awk {print $4})

Total1=$(echo $Log1 | awk {print $1+$2+$3+$4+$5+$6+$7})

sleep 0.5

Log2=$(cat /proc/stat | grep cpu | awk {print $2″ “$3” “$4” “$5” “$6” “$7” “$8})

Sys2=$(echo $Log2 | awk {print $4})

Total2=$(echo $Log2 | awk {print $1+$2+$3+$4+$5+$6+$7})

Sys=`expr $Sys2 – $Sys1`

本文出自 “Fighting,Jayson!” 博客