Linux Server traffic Monitoring scripts (network traffic)

Example, in the CentOS test

First look at the results after the test

Code

# vi/etc/rc.d/traffic_monitor.sh

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#!/bin/bash

Path=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin;

Export PATH

function Traffic_monitor {

os_name=$ (sed-n ' 1p '/etc/issue)

While ["1"]

Todo

# The name of the network port

Eth=$1

# status

status= "Fine"

# Get the current time the network port to receive and send traffic

rxpre=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')

# to determine if the fetch value is empty, the network port does not exist

if [[$RXpre = = ' "]]; Then

echo "Error parameter,please input the right port after run the script!"

Exit 0

Fi

txpre=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')

# get 1 seconds after the port to receive and send traffic

Sleep 1

rxnext=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')

txnext=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')

Clear

# get the actual inbound and outbound traffic for the 1 seconds

rx=$ ((${rxnext}-${rxpre}))

tx=$ ((${txnext}-${txpre}))

# to judge the incoming traffic if the MB is greater than the MB order, the KB order of magnitude is displayed.

if [[$RX-lt 1024]];then

rx= "${RX}B/S"

elif [[$RX-gt 1048576]];then

rx=$ (echo $RX | awk ' {print $1/1048576 ' MB/S "} ')

$STATUS = "Busy"

Else

rx=$ (echo $RX | awk ' {print $1/1024 ' kb/s '} ')

Fi

# to determine if the send traffic is greater than MB, display MB units, otherwise the KB order of magnitude

if [[$TX-lt 1024]];then

tx= "${TX}B/S"

elif [[$TX-gt 1048576]];then

tx=$ (echo $TX | awk ' {print $1/1048576 ' MB/S "} ')

Else

tx=$ (echo $TX | awk ' {print $1/1024 ' kb/s '} ')

Fi

# Print Information

Echo-e "==================================="

Echo-e "Welcome to Traffic_monitor Stage"

Echo-e "Version 1.0"

Echo-e "Since 2014.2.26"

Echo-e "Created by Showerlee"

Echo-e "Blog:http://www.111cn.net

The code is as follows

Copy Code

" Echo-e "===================================" Echo-e "System: $OS _name" Echo-e "Date: ' Date +%f '" Echo-e "Time: ' Date +%k:%m:%s '" Echo-e "Port: $" Echo-e "Status: $STATUS" Echo-e "T RX TTX" echo "------------------------------" # Print real-time traffic Echo-e "$eth t $RX $TX" echo "------------------------------" # Exit Info Echo-e "Press ' CTRL + C ' to exit" Done } # Judging execution parameters if [[n ' $]];then # Executive function Traffic_monitor $ Else Echo-e "None parameter,please Add system netport after Run" script! Nexample: ' sh traffic_monitor eth0 ' " Fi ---------------------------------------------- # sh traffic_monitor.sh eth0

Look at a paragraph that's only for the network

The code is as follows

Copy Code

#!/bin/bash If [-N "$"]; Then Eth_name=$1 Else Eth_name= "Eth0" Fi I=0 send_o= ' Ifconfig $eth _name | grep bytes | awk ' {print $} ' | Awk-f: ' {print $} ' recv_o= ' Ifconfig $eth _name | grep bytes | awk ' {print $} ' | Awk-f: ' {print $} ' send_n= $send _o recv_n= $recv _o While [$i-le 100000]; Todo Send_l= $send _n Recv_l= $recv _n Sleep 1 Send_n= ' Ifconfig $eth _name | grep bytes | awk ' {print $} ' | Awk-f: ' {print $} ' Recv_n= ' Ifconfig $eth _name | grep bytes | awk ' {print $} ' | Awk-f: ' {print $} ' i= ' expr $i + 1 ' send_r= ' expr $send _n-$send _l ' recv_r= ' expr $recv _n-$recv _l ' total_r= ' expr $send _r + $recv _r ' Send_ra= ' Expr ($send _n-$send _o)/$i ' Recv_ra= ' Expr ($recv _n-$recv _o)/$i ' Total_ra= ' expr $send _ra + $recv _ra ' Sendn= ' Ifconfig $eth _name | grep bytes | Awk-f (' {print $} ' | awk-f) ' {print $} ' Recvn= ' Ifconfig $eth _name | grep bytes | Awk-f (' {print $} ' | awk-f) ' {print $} ' Clear echo "Last Second:send rate: $send _r bytes/sec Recv rate: $RECV _r bytes/sec Total rate: $total _r bytes/sec" echo "Average value:send rate: $send _ra bytes/sec Recv rate: $RECV _ra bytes/sec Total rate: $total _ra bytes/sec" echo "Total traffic after Startup:send traffic: $sendn RECV traffic: $RECVN" Done