Linux常用的系统监控shell脚本.pdf

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1、Linux 常用的系统监控 shell 脚本QQ:571119822monkey liang1、查看主机网卡流量#!/bin/bash#network#Mike.Xuwhile:;dotime=date+%m”-”%d”“%k”:”%Mday=date+%m”-”%drx_before=ifconfig eth0|sed-n“8p|awkprint$2|cut-c7-tx_before=ifconfig eth0|sed-n“8p|awkprint$6|cut-c7-sleep 2rx_after=ifconfig eth0|sed-n“8p|awkprint$2|cut-c7-tx_afte

2、r=ifconfig eth0|sed-n“8p|awkprint$6|cut-c7-rx_result=$(rx_after-rx_before)/256tx_result=$(tx_after-tx_before)/256echo“$time Now_In_Speed:“$rx_result”kbps Now_OUt_Speed:“$tx_result”kbps”sleep 2done2、系统状况监控#!/bin/sh#systemstat.sh#Mike.XuIP=192.168.1.227top-n 2|grep“Cpu”./temp/cpu.txtfree-m|grep“Mem”./

3、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”:”%Mconnect=netstat-na|grep“219.238.148.30:80|wc-lecho“$time$connect”./temp/connect_count.t

4、xt3、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#monitor available disk spaceSPACE=df|sed-n/$/p|gawkprint$5|seds/%/if$SPACE-ge fi4、监控 CPU 和内存的使用情况#!/bin/bash#scriptto capture system statisticsOUTFILE=/home/xu/capstats.csvDATE=date+%m/%d/%YTIME=date+%k:%m:%sTIMEOUT=uptimeVMOUT=vmstat 1 2USERS=echo$T

5、IMEOUT|gawkprint$4LOAD=echo$TIMEOUT|gawkprint$9|sed“s/,/FREE=echo$VMOUT|sed-n/0-9/p|sed-n2p|gawkprint$4 IDLE=echo$VMOUT|sed-n/0-9/p|sed-n2p|gawkprint$15echo“$DATE,$TIME,$USERS,$LOAD,$FREE,$IDLE”$OUTFILE5、全方位监控主机#!/bin/bash#check_xu.sh#0*/home/check_xu.shDAT=”date+%Y%m%d”HOUR=”date+%H”DIR=”/home/oslo

6、g/host_$DAT/$HOUR”DELAY=60COUNT=60#whether the responsible directory existif!test-d$DIRthen/bin/mkdir-p$DIRfi#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.lo

7、g 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这样会在/home/oslog/host_yyyymmdd/hh 目录下生成各小时 cpu、内存、网络，IO 的统计数据。如果某个时间段产生问题了，就可以去看对应的日志信息，看看当时的主机性能如何。