Linux網卡流量統計工具

#!/bin/sh

# 流量統計工具

# 可帶一個參數：網卡名，如eth0或eth1等

# 輸出格式：統計時間,入流量(Kbps),入流量(Mbps),出流量(Kbps),出流量(Mbps)

# Please edit the followings

EthXname=eth0 # Interface name

StatFreq=2 # Seconds

if test $# -eq 1; then

EthXname=$1

fi

echo "Destination: $EthXname"

# Don't change

influx_kbps=0

outflux_kbps=0

influx_mbps=0

outflux_mbps=0

unsigned_long_max=4294967295

# 檢查是否存在EthXname

Ethname=`cat /proc/net/dev|grep $EthXname|awk -F"[: ]+" '{ printf("%s", $2); }'`

if test "$EthXname" != "$Ethname"; then

echo "Please set EthXname first before running"

echo "Usage: flux.sh ethX"

echo "Example: flux.sh eth0"

exit 1

# 進一步檢查是否存在EthXname

netstat -ie|grep $EthXname> /dev/null 2>&1

if test $? -ne 0; then

# 初始化

influx1_byte=`cat /proc/net/dev|grep $EthXname|awk -F"[: ]+" '{ printf("%d", $3); }'`

outflux1_byte=`cat /proc/net/dev|grep $EthXname|awk -F"[: ]+" '{ printf("%d", $11); }'`

echo "Date,IN-Kbps,IN-Mbps,OUT-Kbps,OUT-Mbps"

while test 2 -gt 1;

do

sleep $StatFreq

#influx2_byte=`cat /proc/net/dev|grep $EthXname|awk -F"[: ]+" '{ printf("%d", $3); }'`

#outflux2_byte=`cat /proc/net/dev|grep $EthXname|awk -F"[: ]+" '{ printf("%d", $11); }'`

inout_bytes=`awk -F"[: ]+" /$EthXname/'{ printf("%s %s", $3, $11) }' /proc/net/dev`

inout_bytes_array=($inout_bytes)

influx2_byte=${inout_bytes_array[0]}

outflux2_byte=${inout_bytes_array[1]}

dd=`date +'%Y-%m-%d/%H:%M:%S'`

if test $influx2_byte -ge $influx1_byte; then

let influx_byte=$influx2_byte-$influx1_byte

else

let influx_byte=$unsigned_long_max-$influx1_byte

let influx_byte=$influx_byte+$influx2_byte

if test $outflux2_byte -ge $outflux1_byte; then

let outflux_byte=$outflux2_byte-$outflux1_byte

let outflux_byte=$unsigned_long_max-$outflux1_byte

let outflux_byte=$outflux_byte+$outflux2_byte

let influx_byte=$influx_byte/$StatFreq

let outflux_byte=$outflux_byte/$StatFreq

# TO bps

let influx_bps=$influx_byte*8

let outflux_bps=$outflux_byte*8

# To kbps

let influx_kbps=$influx_bps/1024

let outflux_kbps=$outflux_bps/1024

# To mbps

let influx_mbps=$influx_kbps/1024

let outflux_mbps=$outflux_kbps/1024

# SHOW on screen

# COLUMN: Date,IN-Kbps,IN-Mbps,OUT-Kbps,OUT-Mbps

echo "$dd,${influx_kbps}Kbps,${influx_mbps}Mbps,${outflux_kbps}Kbps,${outflux_mbps}Mbps"

let influx1_byte=influx2_byte

let outflux1_byte=outflux2_byte

done