Este script mede a velocidade de download na internet baseado no cálculo da média de
velocidade de download enquanto o wget baixa um grande arquivo de um servidor.

O arquivo que o script tentará baixar pode ser alterado pelo usuário através da edição da
variável "link". Após a medição, o script exibe uma tabela de referência mostrando
aproximadente quanto tempo o usuário levaria para baixar alguns tipos de arquivos.

A versão 1.1 corrige o bug da medição de velocidades superiores a 1Mbyte/s.

• Download ispeed
• Enviar nova versão

Esconder código-fonte

#! /bin/bash
# -----------------------------------------------------------------------
# Script: Internet Speed (Ispeed)
# Version: 1.1
# Author: Tiago Oliveira Weber
# E-mail: towalker@gmail.com                 
# 
# Description: This script measures the internet download speed based on
# the download speed mean of wget while downloading a big file from a 
# server. 
# The file the script is going to try to download can be changed by the 
# user in the "link" variable.
# -----------------------------------------------------------------------

# Define links
link=ftp://ftp.slackware-brasil.com.br/slackware-12.0-iso/slackware-12.0-install-d1.iso

# Start to download a file
wget -O /tmp/tempfile -o /tmp/ispeed.log -b $link;
echo -e "\n Wait a few seconds while your internet is being measured"
# Reads values from the log
sleep 10
awk '$5 ~ ".........." {print $8}' /tmp/ispeed.log > /tmp/ispeed2.log
tail -10 /tmp/ispeed2.log > /tmp/ispeed3.log
cut -f 1 -d "K" -s /tmp/ispeed3.log > /tmp/ispeed4.log 
cut -f 1 -d "M" -s /tmp/ispeed3.log > /tmp/ispeed5.log

# Counting ispeed5.log lines
wc -l /tmp/ispeed5.log > /tmp/ispeed6.log
cut -f 1 -d " " -s /tmp/ispeed6.log > /tmp/ispeed7.log
read nm < /tmp/ispeed7.log #nm is the number of variables with M bytes

# summing both logs
cat /tmp/ispeed5.log >> /tmp/ispeed4.log

# Put values into variables
count=1; 
while read line; do
   eval var$count=$line
       count=`expr $count + 1`;
done   < /tmp/ispeed4.log; 

# Round values

varb1=`echo $var1|awk '{print int($1+0.5)}'`
varb2=`echo $var2|awk '{print int($1+0.5)}'`
varb3=`echo $var3|awk '{print int($1+0.5)}'`
varb4=`echo $var4|awk '{print int($1+0.5)}'`
varb5=`echo $var5|awk '{print int($1+0.5)}'`
varb6=`echo $var6|awk '{print int($1+0.5)}'`
varb7=`echo $var7|awk '{print int($1+0.5)}'`
varb8=`echo $var8|awk '{print int($1+0.5)}'`
varb9=`echo $var9|awk '{print int($1+0.5)}'`
varb10=`echo $var10|awk '{print int($1+0.5)}'`

#multiply by 1e3 the M values
varlimit=10
eval kstop=`expr 10 - $nm + 1`;

if [ 1 -lt $kstop ]
then
    varc1=$varb1;
else
    eval varc1=`expr $varb1 \* 1000`
fi 
if [ 2 -lt $kstop ]
then
    varc2=$varb2;
else
    eval varc2=`expr $varb2 \* 1000`
fi 
if [ 3 -lt $kstop ]
then
    varc3=$varb3;
else
    eval varc3=`expr $varb3 \* 1000`
fi 
if [ 4 -lt $kstop ]
then
    varc4=$varb4;
else
    eval varc4=`expr $varb4 \* 1000`
fi 
if [ 5 -lt $kstop ]
then
    varc5=$varb5;
else
    eval varc5=`expr $varb5 \* 1000`
fi 

if [ 6 -lt $kstop ]
then
    varc6=$varb6;
else
    eval varc6=`expr $varb6 \* 1000`
fi 
if [ 7 -lt $kstop ]
then
    varc7=$varb7;
else
    eval varc7=`expr $varb7 \* 1000`
fi 
if [ 8 -lt $kstop ]
then
    varc8=$varb8;
else
    eval varc8=`expr $varb8 \* 1000`
fi 
if [ 9 -lt $kstop ]
then
    varc9=$varb9;
else
    eval varc9=`expr $varb9 \* 1000`
fi 
if [ 10 -lt $kstop ]
then
    varc10=$varb10;
else
    eval varc10=`expr $varb10 \* 1000`
fi 

# calculate the mean
eval sum=`expr $varc1 + $varc2 + $varc3 + $varc4 + $varc5 + $varc6 + $varc7 + $varc8 + $varc9 + $varc10`;

eval mean_kbytes=`expr $sum / 10`;
eval mean_kbits=`expr $mean_kbytes \* 8`;

# Display Results
clear
echo    "                     Measurement Results                       "
echo -e "_______________________________________________________________"
echo -e " Download Speed is: $mean_kbytes Kbytes/s or $mean_kbits Kbits/s \n \n";

# Comparisons
mp3_size_kbytes=5000
videoclip_size_kbytes=35000
movie_size_kbytes=800000
cdrom_size_kbytes=737000
dvd_size_kbytes=4700000

eval time_mp3_min=`expr $mp3_size_kbytes / $mean_kbytes / 60`
eval time_videoclip_min=`expr $videoclip_size_kbytes / $mean_kbytes / 60`
eval time_movie_min=`expr $movie_size_kbytes / $mean_kbytes / 60`
eval time_cdrom_min=`expr $cdrom_size_kbytes / $mean_kbytes / 60`
eval time_dvd_min=`expr $dvd_size_kbytes / $mean_kbytes / 60`

# Display Comparisons

echo -e "                Reference Download Time Table                     "
echo -e "_______________________________________________________________"
echo -e "  Type \t \t Size (Kbytes) \t \t Time (minutes)"
echo -e "  Music (mp3) \t $mp3_size_kbytes \t \t \t $time_mp3_min"
echo -e "  Videoclip \t $videoclip_size_kbytes \t \t \t $time_videoclip_min"
echo -e "  Movie \t $movie_size_kbytes \t \t $time_movie_min"
echo -e "  Cd-Rom \t $cdrom_size_kbytes \t \t $time_cdrom_min"
echo -e "  DVD \t \t $dvd_size_kbytes \t \t $time_dvd_min" 

# Finish the temporary activities
killall -9 wget
rm /tmp/ispeed.log
rm /tmp/ispeed2.log
rm /tmp/ispeed3.log
rm /tmp/ispeed4.log
rm /tmp/tempfile

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