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          五个常用的Linux监控脚本代码

          • 时间:
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          • 来源:124软件资讯网

              为各人提供五个常用Linux监控剧本(检察主机网卡流量、系统状态监控、监控主机的磁盘空间,当使用空间凌驾90%就通过发mail来发忠告、监控CPU和内存的使用情形、全方位监控主机)  ,有需要的朋侪不妨看看哦

              1、检察主机网卡流量

              #!/bin/bash

              #network

              #Mike.Xu

              while : ; do

              time='date +%m"-"%d" "%k":"%M'

              day='date +%m"-"%d'

              rx_before='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 2

              done

              2、系统状态监控

              #!/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

              3、监控主机的磁盘空间,当使用空间凌驾90%就通过发mail来发忠告

              #!/bin/bash

              #monitor available disk space

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

              if [ $SPACE -ge 90 ]

              then

              jbxue123@163.com

              fi

              4、 监控CPU和内存的使用情形

              #!/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

              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

              # whether the responsible directory exist

              if ! test -d ${DIR}

              then

              /bin/mkdir -p ${DIR}

              fi

              # general check

              export 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 &

              放在crontab里每小时自动执行:

              0 * * * * /home/check_xu.sh

              这样便会在/home/oslog/host_yyyymmdd/hh目录下天生各小时cpu、内存、网络  ,IO的统计数据  。

              若是某个时间段发生问题了  ,就可以去看对应的日志信息 ,看看其时的主机性能怎样  。