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Hi everyone, I wanna ask about Bytes from ifconfig eth0.
Like us know, menu's from ifconfig eth0 is...

eth0 Link encap:Ethernet HWaddr 00:0F:20:CF:8B:42
inet addr:217.149.127.10 Bcast:217.149.127.63 Mask:255.255.255.192
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2472694671 errors:1 dropped:0 overruns:0 frame:0
TX packets:44641779 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1761467179 (1679.7 Mb) TX bytes:2870928587 (2737.9 Mb)
Interrupt:28

And the question is, how to make RX bytes, and TX bytes into kbps?
If we running the script, will be like this...

$speed.py eth0
Upspeed: 150 Kb/s
Downspeed: 32 Kb/s

Sorry, if my question make a little confusing. because I'm still practice learning python...

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Last Post by Arzak
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RX bytes and TX bytes are not speed measurements, they show the total number of bytes received and transmitted by this interface (eth0).

Are you a friend of zero_1 who posted the same question 1 week ago Click Here ?

Edited by Gribouillis

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No, thats me, im forget email password. So i make the new one. And change the question to be converting speed Bytes from eth0
to kbps for linux and not windows anymore

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I don't understand your question because kbps is kilobits per second, a speed measurement, but ifconfig doesn't give any speed indication.

Edited by Gribouillis

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yeah me too, i change the os to linux for this practice from my lecture. I tried to make another script.
But this script can't made like the sample before...

import time
import os
import sys

def get_bytes(t, iface='wlan0'):
    with open('/sys/class/net/' + iface + '/statistics/' + t + '_bytes', 'r') as f:
        data = f.read();
    return int(data)

if __name__ == '__main__':
    (tx_prev, rx_prev) = (0, 0)
    while(True):
        tx = get_bytes('tx')
        rx = get_bytes('rx')
        if tx_prev > 0:
            tx_speed = tx - tx_prev
            print('TX: ', tx_speed, 'bps')
        if rx_prev > 0:
            rx_speed = rx - rx_prev
            print('RX: ', rx_speed, 'bps')
        time.sleep(1)
        tx_prev = tx
        rx_prev = rx

Note:
Sample is like i written above...
speed.py eth0
upspeed: 150 kb/s
downspeed: 30 kb/s

1

If you only want to add an interface argument to your script, use the argparse module like this

import argparse
import time
import os
import sys

def get_bytes(t, iface):
    with open('/sys/class/net/' + iface + '/statistics/' + t + '_bytes', 'r') as f:
        data = f.read();
    return int(data)

if __name__ == '__main__':
    parser = argparse.ArgumentParser(description="estimates internet interface speed")
    parser.add_argument('iface', metavar='INTERFACE', help='network interface such as eth0 or wlan0')
    args = parser.parse_args()
    (tx_prev, rx_prev) = (0, 0)
    while(True):
        try:
            tx = get_bytes('tx', args.iface)
            rx = get_bytes('rx', args.iface)
        except IOError:
            print("Cannot read the number of bytes received or transmitted through interface {}".format(args.iface))
            break
        if tx_prev > 0:
            tx_speed = tx - tx_prev
            print('TX: ', tx_speed, 'bps')
        if rx_prev > 0:
            rx_speed = rx - rx_prev
            print('RX: ', rx_speed, 'bps')
        time.sleep(1)
        tx_prev = tx
        rx_prev = rx
0

Also it seems to me that using

import psutil
d = psutil.net_io_counters(pernic=True)

is a more robust way to obtain the numerical data (most probably cross-platform).

Edited by Gribouillis

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It's good option using import argparse Now, i will try to make this script like the sample

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Problem Solved, Here's The Code...

#!/usr/bin/python3


import argparse
import time
import os
import sys

def get_bytes(t, iface):
    with open('/sys/class/net/' + iface + '/statistics/' + t + '_bytes', 'r') as f:
        data = f.read();
    return int(data)

if __name__ == '__main__':
    parser = argparse.ArgumentParser(description="estimates internet interface speed")
    parser.add_argument('iface', metavar='INTERFACE', help='network interface such as eth0 or wlan0')
    args = parser.parse_args()
    (tx_prev, rx_prev) = (0, 0)
    while(True):
        try:
            tx = get_bytes('tx', args.iface)
            rx = get_bytes('rx', args.iface)
        except IOError:
            print("Cannot read the number of bytes received or transmitted through interface {}".format(args.iface))
            break
        if tx_prev > 0:
            tx_speed = tx - tx_prev
            print('Down: ', tx_speed, 'Kbps')
        if rx_prev > 0:
            rx_speed = rx - rx_prev
            print('Up: ', rx_speed, 'Kbps')
        time.sleep(1)
        tx_prev = tx
        rx_prev = rx

Tx = Download Speed, and Rx = Upload Speed...

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