simple CLI tool for agregated total received on eth0 (simpler than bandwidth)

Emmanuel_uk · 08-11-2005, 11:49 AM

Hi,

Do you know of a very simple tool that keep tracks of
how much one have downloaded (a counter) since last time
that counter was reset (typically 1 week or 1 month)?
My desktop PC gets switched off a few times a day (partner thinks it wastes electricity)

I'd rather not installed a full fledged bandwidth management tool.
This would be an overkill.

I have shorewall and snort installed (iptables as well)
Using mandrive 2005 LE

could only find a bit of script so far
http://www.linuxquestions.org/questi...al+download%22

Have read about criket, RRDtools and other. By far an overkill

The network monitoring from Mandrake give the total download.
So does knetload. But they get reset every time I reboot.

Any idea? Thanks.

visaris · 08-11-2005, 11:54 AM

Code:

some_user@some_box ~ $ /sbin/ifconfig eth0

eth0      Link encap:Ethernet  HWaddr 00:30:48:23:25:C1
          inet addr:192.168.1.99  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1526970 errors:0 dropped:0 overruns:0 frame:0
          TX packets:979800 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1682332806 (1604.3 Mb)  TX bytes:103750197 (98.9 Mb)

The last line may be what you want:
"RX bytes:1682332806 (1604.3 Mb) TX bytes:103750197 (98.9 Mb)"

Rx is received, Tx is transmitted.

Edit:
Bah, I didn't read your post right. I know a way to solve your problem with a little custom script.. I'll see if I can write it for you when I get home..

Emmanuel_uk · 08-11-2005, 01:55 PM

thanks, that would be great
I can do a bit of bash (still learning)
ifconfig give RX bytes:2077277 (1.9 Mb) on my PC
So I suppose this can be grep then awked (I do not master awk very well at all)
I see a problem, one needs to be root to exec ifconfig,
ideally any user should be able to run the script.
Then one could save and add the old values from a file to do the accumulation of bytes. I guess

Have installed GKrellM
It was not so obvious but by clicking on the eth0 graph on a very small square comes
a today/week/month total.

I am still interested in a bash script nevertheless

[Edit added / removed draft script, no machine to test it yet]

Emmanuel_uk · 08-17-2005, 03:29 PM

Here is what I came up with. I struggled with /n to add return cariage.
So I used echo followed by nothing instead.
(I thought there was another syntax than echo -e "\n"
that is why I struggled)

I have not tested it very much (lack of time for now), but it
seemed to work. Next thing add date + time in 3rd colum
and include the script in the shutdown sequence (logout?).
Not really tackling multi-users here

Code:

 
#!/bin/bash -x
# Script to sum the total downloaded since a given date.
# Need to be used at computer shutdown.
# Data in totaldown, two columns, one for value since last reboot (2d col), one for accumulated total (1st col)
# Version 0.0001b
totaldownfile="/home/totaldown.txt" #location not user depedent
if [[ -s $totaldownfile ]]
then
echo "file $totaldownfile exists and is non empty."
else
touch $totaldownfile
echo "0 0" >> $totaldownfile #Initialise the file 2 zeros and a new line
fi

#------------ Grab the new information --------------
linewithdata=`ifconfig | grep -m1 "RX bytes"` # get only first occurence with -m1 bec eth0 is what we are interested in
echo $linewithdata
latestdownload=`echo $linewithdata | awk ' { print $2 } '` #The RX bytes are the 2d field We do not want the next field (Mb units)
# Now remove the string    bytes:
latestdownload=`echo $latestdownload | tr -d [a-z,:]`
echo $latestdownload

#------------ Grab the old information --------------
totaltodate=`tail -n1 < $totaldownfile | awk ' { print $1 } '` #first column should have the total to date, last line of the file accessed with tail

#---------- process and save information --------------
newtotal=`expr $totaltodate + $latestdownload`
towrite=$newtotal" "$latestdownload`echo ` #the " " insert a blank as field separator for the new string and the new line from echo"\n"
echo $towrite >> $totaldownfile
echo "Finished - now executing cat $totaldownfile for information"
cat $totaldownfile
exit 0