下载后可任意编辑几个常用的 Linux 操作系统监控脚本：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='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 done2、系统状况监控#!/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.txt3、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 space SPACE='df | sed -n '/ \ / \$ / p' | gawk '{print \$5}' | sed 's/%//' if [ \$SPACE -ge 90 ] then fty89@163.com fi4、 监控 CPU 和内存的使用情况#!/bin/bash #script to capture system statistics OUTFILE=/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" ...
