Linux系统状况（CPU、内存、磁盘）监控的脚本[分享]

#!/bin/sh

#systemstat.sh

#Mike.Xu

IP=192.168.1.227

top -n 2| grep "Cpu" >>./temp/cpu.txt

free -m | grep "Mem" >> ./temp/mem.txt

df -k | grep "sda1" >> ./temp/drive_sda1.txt

#df -k | grep sda2 >> ./temp/drive_sda2.txt

df -k | grep "/mnt/storage_0" >> ./temp/mnt_storage_0.txt

df -k | grep "/mnt/storage_pic" >> ./temp/mnt_storage_pic.txt

time=`date +%m"."%d" "%k":"%M`

connect=`netstat -na | grep "219.238.148.30:80" | wc -l`

echo "$time $connect" >> ./temp/connect_count.txt

貌似监控CPU、内存、硬盘、目录、网络连接数等，并将其记录到文件里面。现在还不是很懂，等后面懂了再来慢慢分析。

下面这个脚本只监控磁盘空间，当使用空间超过90％就通过发mail来发警告

#!/bin/bash

#monitor available disk space

SPACE='df | sed -n '/ / $ / p' | gawk '{print $5}' | sed 's/%//'

if [ $SPACE -ge 90 ]

then

yourmail@163.com

fi

下面这个脚本，监控CPU和内存的使用情况

#!/bin/bash

#script to capture system statistics

OUTFILE=/home/xu/capstats.csv

DATE='date +%m/%d/%Y'

TIME='date +%k:%m:%s'

TIMEOUT='uptime'

VMOUT='vmstat 1 2'

USERS='echo $TIMEOUT | gawk '{print $4}' '

LOAD='echo $TIMEOUT | gawk '{print $9}' | sed "s/,//' '

FREE='echo $VMOUT | sed -n '/[0-9]/p' | sed -n '2p' | gawk '{print $4} ' '

IDLE='echo $VMOUT | sed -n '/[0-9]/p' | sed -n '2p' |gawk '{print $15}' '

echo "$DATE,$TIME,$USERS,$LOAD,$FREE,$IDLE" >> $OUTFILE