WiFi Debugging on OSX

wifi.sh

#!/usr/bin/env bash

# Remember to change the "Podomere" SSID to name grab your preferred/connected SSIDs
# Also update the default gateway!
# Change to a SpeedTest server near you from http://www.speedtest.net/speedtest-servers.php
# Pick a small file http://lowendtalk.com/discussion/2178/speed-test-files-1-300-locations
# And run this file from a wifitest directory and put it in your crontab for every minute!

# Note: add your BSSID,APname in to a file called "bssidsapnames.txt" in the same directory!!
# Yes this is a quick and nasty script! All improvements welcome including shortening :)

# To simply call airport commands you can sym link the Apple OSX airport binary to somewhere
# in your existing path e.g.
# "sudo ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport \\
# /usr/sbin/airport"

# Note: On OSX you can use "system_profiler -listDataTypes" to get fun info!

# Also PLEASE NOTE that this generated data then becomes very easily parsed with standard unix tools e.g
# to get SNR you can just do this... or indeed another simple grep/egrep for 'noise' etc.
# egrep -hi signal /Volumes/dat1/wifitest/debugging/wifitest_2014-09-27* | awk '{sum = $5 - $8; print $1" " $5" " $8" SNR:" sum}'

# Please amend any file or user paths for your own system and then place the script in cron for every minute and you will 
# have continual performance monitoring which you can easily graph or ask questions of with basic ubiquitous tools.
# See some of the other gists above to simply graph or alert on conditions...

now=$(date +%Y-%m-%d_%H.%M.%S)
file="/Users/Account/wifitest/wifitest_$now.txt"
touch "$file"
if [ ! -f "/Users/Account/wifitest/bssidsapnames.txt" ]; then
  touch "/Users/Account/wifitest/bssidsapnames.txt"
fi

function stamp {
  sed -e "s/^/$(date +%Y-%m-%d_%H.%M.%S) /" | tee -a "$file"
}

echo "======NewFile======" | stamp

for i in {1..5}
do
  echo "======Begin=======" | stamp
  /usr/sbin/system_profiler SPAirPortDataType | egrep -i "Status:|PHY Mode:|en:|Channel:|Country|Signal|Rate:|Index:" | sed 's/^[ \t]*//;s/[ \t]*$//' | stamp
  bssid=`/System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -I | egrep -i "BSSID" | sed 's/^[ \t]*//;s/[ \t]*$//' | awk '{print $2}'`
  #bssid=`/usr/sbin/system_profiler SPAirPortDataType | egrep -i "BSSID" | sed 's/^[ \t]*//;s/[ \t]*$//' | awk '{print $2}'`
  /usr/sbin/airport -I | egrep -i " SSID:|maxRate:" | sed 's/^[ \t]*//;s/[ \t]*$//' | stamp
  #echo "BSSID: $bssid" | stamp
  echo "$bssid" | awk 'FNR==NR{a[$1]=$2;next}{print "Access Point Name: " a[$1]}' FS=',|;' OFS=',' /Users/Account/wifitest/bssidsapnames.txt - | stamp
  /usr/sbin/system_profiler SPPowerDataType | egrep -i "Charging:|Amperage|Voltage|Connected|Wattage" | sed 's/^[ \t]*//;s/[ \t]*$//' | stamp
  /usr/sbin/ioreg -w 0 -l | egrep -i "\"voltage|cellvoltage" | sed 's/|//g;s/^[ \t]*//;s/[ \t]*$//'  | stamp
  echo "======Router_ICMP_Ping======" | stamp
  /sbin/ping -A -c3 -i1 -t3 10.1.1.1 | tail -n2 | stamp
  echo "======Google_ICMP_Ping======" | stamp
  /sbin/ping -A -c3 -i1 -t3 google.com | tail -n2 | stamp
  echo "======Google_Homepage=======" | stamp
  curl -L -s -o /dev/null -w 'DNSLookup:%{time_namelookup}ms Total:%{time_total}ms Speed:%{speed_download} Bytes p/s(times 8 for bps) Data:%{size_download} Bytes' http://google.com/ | stamp
done
  echo "====TelstraSpeedTestFile===" | stamp
  curl -L -s -o /dev/null -w 'DNSLookup:%{time_namelookup}ms Total:%{time_total}ms Speed:%{speed_download} Bytes p/s(times 8 for bps) Data:%{size_download} Bytes' http://per1.speedtest.telstra.net/speedtest/random350x350.jpg | stamp
  echo "==== LOCAL SCAN ===========" | stamp
  /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -s | sort -k3 | sed -e "s/^/$(date +%Y-%m-%d_%H.%M.%S) Scan~/" | tee -a "$file"


echo "=====EndFile======" | stamp