MacOS Remove unwanted preferred wifi networks

remove-unwanted-networks.sh

networksetup -listpreferredwirelessnetworks en0 | tail -n +2 | awk '{$1=$1};1' > ./wifi-networks-all.txt
cp ./wifi-networks-all.txt ./wifi-networks-keep.txt

# ... manually remove networks we DON'T want from wifi-networks-keep.txt ...

grep -Fvxf ./wifi-networks-keep.txt ./wifi-networks-all.txt > ./wifi-networks-remove.txt

networksetup -listallhardwareports
# ^ find wifi - probably `en0`

cat ./wifi-networks-remove.txt | while read network; do 
  echo "removing: $network"
  networksetup -removepreferredwirelessnetwork 'en0' "$network" || break
done