Mac OS - extract handshakes from CAP files of airport command

extract.sh

# On Mac OSX

# Will run AIRODUMP scan of all BSSIDs
# sudo airport -s

# Will run AIRODUMP sniff on channel 11
# sudo airport en0 sniff 11
# Atm, I can't find how to sniff on all channels at the same time.

if [ $# -eq 0 ]
then
    echo "No arguments supplied"
    exit
fi

echo "input cap file is $1"
rm *.cap
rm small_cap*
tcpdump -r $1 -w small_cap -C 2
for f in small_cap*; do
    echo "Processing ... File -> $f"
    ../aircrack-ng/src/wpaclean $f.cap $f > /dev/null
done

mergecap -a -w output_file *.cap -F pcap

rm *.cap
rm small_cap*
mv output_file output_file.cap

aircrack-ng output_file.cap