一、查看主機網卡流量linux
#!/bin/bashios
#networkbash
while : ; doide
time=’date +%m」-」%d」 「%k」:」%M’spa
day=’date +%m」-」%d’ip
rx_before=’ifconfig eth0|sed -n 「8″p|awk ‘{print $2}’|cut -c7-’內存
tx_before=’ifconfig eth0|sed -n 「8″p|awk ‘{print $6}’|cut -c7-’it
sleep 2io
rx_after=’ifconfig eth0|sed -n 「8″p|awk ‘{print $2}’|cut -c7-’class
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
二、系統情況監控
#!/bin/sh
#systemstat.sh
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
三、監控主機的磁盤空間,當使用空間超過90%就經過發mail來發警告
#!/bin/bash
#monitor available disk space
SPACE=’df | sed -n ‘/ / $ / p’ | gawk ‘{print $5}’ | sed ’s/%//’
if [ $SPACE -ge 90 ]
then
fty89@163.com
fi
四、 監控CPU和內存的使用狀況
#!/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」 >> $OUTFILE
五、全方位監控主機
#!/bin/bash
# check_xu.sh
# 0 * * * * /home/check_xu.sh
DAT=」`date +%Y%m%d`」
HOUR=」`date +%H`」
DIR=」/home/oslog/host_${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 &