Linux Network Bandwidth check Script.

The following are two such scripts by joe miller. The first script counts the number of packets per second, received (RX) or sent (TX) on an interface, while the latter scripts measures the network bandwidth of incoming (RX) and outgoing (TX) traffic on an interface. For these scripts to work, you do not need to install anything.

Measure Packets per Second on an Interface

1.netpps.sh

 

#!/bin/bash

INTERVAL="1"  # update interval in seconds

if [ -z "$1" ]; then

        echo

        echo usage: $0 [network-interface]

        echo

        echo e.g. $0 eth0

        echo

        echo shows packets-per-second

        exit

fi

IF=$1

while true

do

        R1=`cat /sys/class/net/$1/statistics/rx_packets`

        T1=`cat /sys/class/net/$1/statistics/tx_packets`

        sleep $INTERVAL

        R2=`cat /sys/class/net/$1/statistics/rx_packets`

        T2=`cat /sys/class/net/$1/statistics/tx_packets`

        TXPPS=`expr $T2 - $T1`

        RXPPS=`expr $R2 - $R1`

        echo "TX $1: $TXPPS pkts/s RX $1: $RXPPS pkts/s"

done

Measure Network Bandwidth on an Interface

2.netpps.sh

 

#!/bin/bash

INTERVAL="1"  # update interval in seconds

if [ -z "$1" ]; then

        echo

        echo usage: $0 [network-interface]

        echo

        echo e.g. $0 eth0

        echo

        exit

fi

IF=$1

while true

do

        R1=`cat /sys/class/net/$1/statistics/rx_bytes`

        T1=`cat /sys/class/net/$1/statistics/tx_bytes`

        sleep $INTERVAL

        R2=`cat /sys/class/net/$1/statistics/rx_bytes`

        T2=`cat /sys/class/net/$1/statistics/tx_bytes`

        TBPS=`expr $T2 - $T1`

        RBPS=`expr $R2 - $R1`

        TKBPS=`expr $TBPS / 1024`

        RKBPS=`expr $RBPS / 1024`

        echo "TX $1: $TKBPS kb/s RX $1: $RKBPS kb/s"

done

The following screenshot shows the above two scripts in action.

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Another Command to check network Status .

# /sbin/ip -s link 

Thanksvishal vyas