#!/bin/sh
# Credit to Harrison Sand
# All I did was modify it to infinite loop
iw dev wlan0 ocb leave
while :
do
  for freq in $(cat freq.txt); do
    echo "$freq 10MHZ"
    iw dev wlan0 ocb join $freq 10MHZ
    sleep  1
    iw dev wlan0 ocb leave
    echo "$freq 5MHZ"
    iw dev wlan0 ocb join $freq 5MHZ
    sleep 1
    iw dev wlan0 ocb leave
 done
done