Wi-Fi Channel Hoping BASH Script

chanhop.sh

#!/bin/bash

# From http://www.willhackforsushi.com/books/377_eth_2e_06.pdf and referenced by https://wiki.wireshark.org/CaptureSetup/WLAN#Channel_Hopping (dead/spam link)
# Hop channels every second

IFACE=ath0
IEEE80211bg="1 2 3 4 5 6 7 8 9 10 11"
IEEE80211bg_intl="$IEEE80211b 12 13 14"
IEEE80211a="36 40 44 48 52 56 60 64 149 153 157 161"
IEEE80211bga="$IEEE80211bg $IEEE80211a"
IEEE80211bga_intl="$IEEE80211bg_intl $IEEE80211a"

while true ; do
  for CHAN in $IEEE80211bg ; do
    echo "Switching to channel $CHAN"
    iwconfig $IFACE channel $CHAN
    sleep 1
  done
done