Linux a few common monitoring scripts

Below is a few of my commonly used host monitoring scripts, we can change according to their own situation, and hope to give you a little help.

1. Check the host network card traffic

#!/bin/bash#network#mike.xuwhile : ; do      time= ' Date +%m ' -"%d"   "%k": "%M '       day= ' date +%m"-"%d"        rx_before= ' ifconfig eth0|sed -n  ' 8 "p|awk  ' {print $2} ' |cut -c7-'        tx_before= ' ifconfig eth0|sed -n  ' 8 "p|awk  ' {print $6} ' | cut -c7-'       sleep 2      rx_after= ' ifconfig eth0|sed -n  "8" p|awk  ' {print $2} ' |cut -c7-'        tx_after= ' ifconfig eth0|sed -n  ' 8 "p|awk  ' {print $6} ' |cut -c7-'        rx_result=$[(Rx_after-rx_before)/256]      tx_ result=$[(Tx_after-tx_before)/256]      echo  "$time  now_in_speed:   "$rx _result" Kbps now_out_speed:  "$tx _result" Kbps "      sleep 2done 

2, System condition monitoring

#!/bin/sh#systemstat.sh#mike.xuip=192.168.1.227top -n 2| grep  "Cpu"  >>./temp/ cpu.txtfree -m | grep  "Mem"  >> ./temp/mem.txtdf -k | grep   "SDA1"  >> ./temp/drive_sda1.txt#df -k | grep sda2 >>  ./temp/drive_sda2.txtdf -k | grep  "/mnt/storage_0"  >> ./temp/mnt_ storage_0.txtdf -k | grep  "/mnt/storage_pic"  >> ./temp/mnt_storage_ Pic.txttime= ' date +%m '. " %d " "%k ":"%M ' connect= ' netstat -na | grep  "219.238.148.30:80"  | wc -l " echo  "$time    $connect"  >> ./temp/connect_count.txt 

3, monitor the disk space of the host, when the use of more than 90% in space by sending mail to send a warning

#!/bin/bash#monitor available disk spacespace= ' DF | Sed-n '/\/$/P ' | Gawk ' {print $} ' | Sed ' s/%//' if [$SPACE-ge]then[email Protected]fi

4. Monitor CPU and Memory usage

#!/bin/bash#script  to capture system statisticsoutfile=/home/xu/capstats.csvdate= ' 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 

5, omni-directional monitoring host

#!/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=60count=60# whether the  responsible directory existif ! test -d ${DIR}then         /bin/mkdir -p ${dir}fi# general checkexport term=linux/usr/ Bin/top -b -d ${delay} -n ${count} > ${dir}/top_${dat}.log 2> &1 &# cpu check/usr/bin/sar -u ${delay} ${count} > ${dir}/ cpu_${dat}.log 2>&1 &#/usr/bin/mpstat -p 0 ${delay} ${count}  > ${dir}/cpu_0_${dat}.log 2>&1 &#/usr/bin/mpstat -p 1 ${delay}  ${count} > ${dir}/cpu_1_${dat}.log 2>&1 &# memory check/usr/ Bin/vmstat ${delay} ${count} > ${dir}/vmstat_${dat}.log 2>&1 &# i/o check/usr/bin/ iostat ${delay} ${count} > ${dir}/iostat_${dat}.log 2>&1 &#  Network check/usr/bin/sar -n dev ${delay} ${count} > ${dir}/net_${dat}. log 2>&1 &#/usr/bin/sar -n edev ${delay} ${count} > ${ dir}/net_edev_${dat}.log 2>&1 &

This article is from the It Dick thread blog, so be sure to keep this source http://68686789.blog.51cto.com/10438688/1717612

Linux a few common monitoring scripts