五个常用的Linux监控脚本代码linux系统监控脚本

2022-07-20 20:31:02 网络知识 官方管理员

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为大家提供五个常用Linux监控脚本(查看主机网卡流量、系统状况监控、监控主机的磁盘空间,当使用空间超过90％就通过发mail来发警告、监控CPU和内存的使用情况、全方位监控主机)，有需要的朋友不妨看看哦

1、查看主机网卡流量

#!/bin/bash
#network
#Mike.Xu
while:;do
time='date+%m"-"%d""%k":"%M'
day='date+%m"-"%d'
rx_before='ifconfigeth0|sed-n"8"p|awk'{print$2}'|cut-c7-'
tx_before='ifconfigeth0|sed-n"8"p|awk'{print$6}'|cut-c7-'
sleep2
rx_after='ifconfigeth0|sed-n"8"p|awk'{print$2}'|cut-c7-'
tx_after='ifconfigeth0|sed-n"8"p|awk'{print$6}'|cut-c7-'
rx_result=$[(rx_after-rx_before)/256]
tx_result=$[(tx_after-tx_before)/256]
echo"$timeNow_In_Speed:"$rx_result"kbpsNow_OUt_Speed:"$tx_result"kbps"
sleep2
done

2、系统状况监控

#!/bin/sh
#systemstat.sh
#Mike.Xu
IP=192.168.1.227
top-n2|grep"Cpu">>./temp/cpu.txt
free-m|grep"Mem">>./temp/mem.txt
df-k|grep"sda1">>./temp/drive_sda1.txt
#df-k|grepsda2>>./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

3、监控主机的磁盘空间,当使用空间超过90％就通过发mail来发警告

#!/bin/bash
#monitoravailablediskspace
SPACE='df|sed-n'/\/$/p'|gawk'{print$5}'|sed's/%//'
if[$SPACE-ge90]
then
jbxue123@163.com
fi

4、监控CPU和内存的使用情况

#!/bin/bash
#scripttocapturesystemstatistics
OUTFILE=/home/xu/capstats.csv
DATE='date+%m/%d/%Y'
TIME='date+%k:%m:%s'
TIMEOUT='uptime'
VMOUT='vmstat12'
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

5、全方位监控主机

#!/bin/bash
#check_xu.sh
#0****/home/check_xu.sh

DAT="`date+%Y%m%d`"
HOUR="`date+%H`"
DIR="/home/oslog/host_${DAT}/${HOUR}"
DELAY=60
COUNT=60
#whethertheresponsibledirectoryexist
if!test-d${DIR}
then
/bin/mkdir-p${DIR}
fi
#generalcheck
exportTERM=linux
/usr/bin/top-b-d${DELAY}-n${COUNT}>${DIR}/top_${DAT}.log2>&1&
#cpucheck
/usr/bin/sar-u${DELAY}${COUNT}>${DIR}/cpu_${DAT}.log2>&1&
#/usr/bin/mpstat-P0${DELAY}${COUNT}>${DIR}/cpu_0_${DAT}.log2>&1&
#/usr/bin/mpstat-P1${DELAY}${COUNT}>${DIR}/cpu_1_${DAT}.log2>&1&
#memorycheck
/usr/bin/vmstat${DELAY}${COUNT}>${DIR}/vmstat_${DAT}.log2>&1&
#I/Ocheck
/usr/bin/iostat${DELAY}${COUNT}>${DIR}/iostat_${DAT}.log2>&1&
#networkcheck
/usr/bin/sar-nDEV${DELAY}${COUNT}>${DIR}/net_${DAT}.log2>&1&
#/usr/bin/sar-nEDEV${DELAY}${COUNT}>${DIR}/net_edev_${DAT}.log2>&1&
放在crontab里每小时自动执行：