Toggle macOS proxy settings

toggle-proxy.sh

#!/bin/bash

arg1=$1

# Get the list of network services
network_services=$(networksetup -listallnetworkservices | tail -n +2)

if [[ "$arg1" == "on" ]]; then
  while IFS= read -r service; do
    networksetup -setwebproxy "$service" 127.0.0.1 8000
  done <<<"$network_services"
elif [[ "$arg1" == "off" ]]; then
  while IFS= read -r service; do
    # Disable proxy on the network service
    networksetup -setwebproxystate "$service" off
  done <<<"$network_services"
else
  echo "Set the argument to on or off."
fi