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rsvp/netspeed.sh

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netspeed.sh : check download speed rate via command line | Linux bash script
#!/usr/bin/env bash
# bash 4.1.5(1) Linux Ubuntu 10.04 Date : 2013-07-11
#
# _______________| netspeed : check download speed via command line.
#
# Usage: netspeed [tokyo, london, usw, use, east, west, URL]
# ^default U.S. west coast.
# [ -speed_KB/sec ]
# ^negation activates the Mbps converter.
#
# First try it out without any arguments.
#
# Dependencies: wget
# (rate displayed in Kilobytes per second,
# whereas speed tests usually adopt Megabits.)
#
# Example units: Download Speed: 659 kbps (82.4 KB/sec transfer rate)
# Upload Speed: 317 kbps (39.6 KB/sec transfer rate)
# kb=kilobits KB=Kilobytes
# So 0.007813 Mb = 8 kilobits = 1 Kilobyte
# since 1 Mb = 1024 kilobits = 128 Kilobytes
#
# Units: b stands for bit and B stands for byte. In the context of
# data rate units, one byte refers to 8 bits. For example,
# when a 1 Mbps connection is advertised, it usually means
# that the maximum achievable download bandwidth is
# 1 megabit/s (million bits per second), which is actually
# 0.125 MB/s (megabyte per second), or about
# 0.1192 MiB/s (mebibyte per second).
# http://en.wikipedia.org/wiki/Mbit/s#megabit_per_second
# CHANGE LOG get LATEST version from https://bitbucket.org/rsvp/gists/src
#
# 2013-07-11 Modify linode.com domains which have test files,
# see https://www.linode.com/speedtest/
# 2011-10-09 Add rate conversion to Mbps using negated first argument.
# 2011-10-08 Add URL as possible arg. Clarify rate units.
# Public as gist to https://gist.github.com/1272488
# 2011-10-07 First version based on wget, though curl also works:
# http://stackoverflow.com/questions/426272
# Command line alternative to http://www.speedtest.net
# _____ Prelims
set -u
# ^ unbound (i.e. unassigned) variables shall be errors.
set -e
# ^ error checking :: Highly Recommended (caveat: you can't check $? later).
#
# _______________ :: BEGIN Script ::::::::::::::::::::::::::::::::::::::::
site=${1:-'usw'}
case $site in
'london') test='http://speedtest.london.linode.com/100MB-london.bin' ;;
'tokyo') test='http://speedtest.tokyo.linode.com/100MB-tokyo.bin' ;;
'usw') test='http://speedtest.fremont.linode.com/100MB-fremont.bin' ;;
# US West: Fremont, California
'use') test='http://speedtest.newark.linode.com/100MB-newark.bin' ;;
# US East: Newark, New Jersey
'east') test='http://speedtest.wdc01.softlayer.com/downloads/test500.zip' ;;
# US East: Washington, D.C.
'west') test='http://speedtest.sjc01.softlayer.com/speedtest/speedtest/random500x500.jpg' ;;
# US West: San Jose, California
*) test=$1 ;;
# valid URL assumed, else wget will give any error message.
esac
# Sources:
# 2013-07-11 Linode renames sub-domains for testing.
# 2011-10-07 http://www.linode.com/speedtest/ for file URL.
# http://speedtest.wdc01.softlayer.com for actual testing.
if [ $test = -${test#-} ] ; then
# ^check for negative sign in the first argument.
echo "`awk "BEGIN { print ($test * -0.007813) }"` Mbps"
# awk as nice floating-point calculator!
else
echo ' :: Rate in Kilobytes/sec; industry usually adopts megabits/sec: '
echo ' :: 1 Kilobytes/sec (K/s) = 0.007813 megabits/sec (Mbps).'
echo ' :: To CONVERT, use negated rate as first argument to netspeed. '
echo ' :: [Terminate netspeed by control-C] [ cf. http://speedtest.net ] '
echo ' :: '
trap 'echo -e "\n\n :: Exit successful on designed interrupt."; exit 0' SIGINT
# MAIN
wget --output-document=/dev/null $test
fi
# If --output-file for wget was used to log results...
#
# --2011-10-07 21:38:27--
# Resolving speedtest.sjc01.softlayer.com... 50.23.64.58
# Connecting to speedtest.sjc01.softlayer.com|50.23.64.58|:80... connected.
# HTTP request sent, awaiting response... 200 OK
# Length: 505544 (494K) [image/jpeg]
# Saving to: `/dev/null'
#
# 0K .......... .......... .......... .......... .......... 10% 80.9K 5s
# 50K .......... .......... .......... .......... .......... 20% 78.5K 5s
# 100K .......... .......... .......... .......... .......... 30% 80.8K 4s
# 150K .......... .......... .......... .......... .......... 40% 78.8K 4s
# 200K .......... .......... .......... .......... .......... 50% 80.8K 3s
# 250K .......... .......... .......... .......... .......... 60% 78.5K 2s
# 300K .......... .......... .......... .......... .......... 70% 78.8K 2s
# 350K .......... .......... .......... .......... .......... 81% 80.8K 1s
# 400K .......... .......... .......... .......... .......... 91% 78.5K 1s
# 450K .......... .......... .......... .......... ... 100% 81.9K=6.2s
#
# 2011-10-07 21:38:33 (79.8 KB/s) - `/dev/null' saved [505544/505544]
exit 0
# _______________ EOS :: END of Script ::::::::::::::::::::::::::::::::::::::::
# # Alternative to wget...
# curl -o /dev/null $test
# # curl is less verbose than wget. Speed is displayed as bytes per second:
# #
# # % Total % Received % Xferd Average Speed Time Time Time Current
# # Dload Upload Total Spent Left Speed
# # 0 500M 0 4931k 0 0 80993 0 1:47:53 0:01:02 1:46:51 81520
# vim: set fileencoding=utf-8 ff=unix tw=78 ai syn=sh :
@Alanaktion

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@Alanaktion Alanaktion commented Mar 20, 2014

All of the Linode-hosted files seem to be gone.

@ghost

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@ghost ghost commented Jun 26, 2014

Yes, the URLs don't work now.

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@rsvp rsvp commented Mar 17, 2015

@Alanaktion -- Amended to gist v2013-07-11 Linode renames sub-domains for testing.

Also check my next comment for a new alternative script which has more features, and seems more accurate. Let me know how you like both. Thanks.

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@rsvp rsvp commented Mar 17, 2015

Wrote an improved script in Bash which gives download as well as upload speeds, plus ping -- esp. suitable for log file: https://github.com/rsvp/speedtest-linux -- check it out.

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@rsvp rsvp commented Mar 7, 2017

SUMMARY

The gist above, netspeed.sh, has been deprecated.

Good news

Work has shifted to using the infrastructure of speedtest.net and fast.com --
again made easily accessible by Bash shell scripts for all POSIX and Linux systems.
Please visit https://git.io/speed to obtain the code. PR are welcomed!

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