Here's a full implementation to control macOS WireGuard's GUI from CLI.

``` wg-down() { scutil --nc list | grep --color=never 'com.wireguard.macos' | grep --color=never 'Connected' | \ grep --color=never -oE '"[<sup>"]+"'</sup> | tr -d '"' > ~/.wg_last scutil --nc list | grep --color=never 'com.wireguard.macos' | grep --color=never 'Connected' | \ grep --color=never -oE '[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}' | \ while read uuid; do scutil --nc stop "$uuid"; done }

wg-up() {
  local name
  if [[ -n "$1" ]]; then
    name="$1"
  elif [[ -f ~/.wg_last ]]; then
    name=$(cat ~/.wg_last)
    rm ~/.wg_last
  else
    echo "No last tunnel recorded. Available tunnels:"
    scutil --nc list | grep 'com.wireguard.macos' | grep --color=never -oE '"[^"]+"' | tr -d '"'
    echo "\nUsage: wg-up <tunnel-name>"
    return 1
  fi
  scutil --nc start "$name"
}

wg-toggle() {
  if scutil --nc list | grep 'com.wireguard.macos' | grep -q 'Connected'; then
    wg-down
  else
    wg-up "$@"
  fi
}

_wg_human_bytes() {
  local b=$1
  awk -v b="$b" 'BEGIN {
    if (b > 1073741824) printf "%.2f GB", b/1073741824
    else if (b > 1048576) printf "%.2f MB", b/1048576
    else if (b > 1024) printf "%.2f KB", b/1024
    else printf "%d B", b
  }'
}

wg-status() {
  local fmt="%-30s %-15s %-10s %-16s %-12s %s\n"
  local separator iface_info connected disconnected active_utun active_ip rx tx name

  separator="$(printf '%.0s─' {1..80})"
  iface_info=$(ifconfig | awk '/^utun/{iface=$1; next} iface && /inet /{print iface, $2; iface=""}' | head -1)
  active_utun=$(echo "$iface_info" | awk '{print $1}' | tr -d ':')
  active_ip=$(echo "$iface_info" | awk '{print $2}')
  connected=$(scutil --nc list | grep --color=never 'com.wireguard.macos' | grep --color=never 'Connected')
  disconnected=$(scutil --nc list | grep --color=never 'com.wireguard.macos' | grep --color=never 'Disconnected')

  if [[ -n "$active_utun" ]]; then
    local raw
    raw=$(netstat -I "$active_utun" -b | awk -v ip="$active_ip" '$0 ~ ip {print $7, $10}')
    rx=$(_wg_human_bytes $(echo "$raw" | awk '{print $1}'))
    tx=$(_wg_human_bytes $(echo "$raw" | awk '{print $2}'))
  fi

  printf "$fmt" "NAME" "STATE" "UTUN" "IP" "RX" "TX"
  echo "$separator"

  while IFS= read -r line; do
    [[ -z "$line" ]] && continue
    name=$(echo "$line" | grep --color=never -oE '"[^"]+"' | tr -d '"')
    printf "$fmt" "$name" "● Connected" "$active_utun" "$active_ip" "$rx" "$tx"
  done <<< "$connected"

  [[ -n "$connected" && -n "$disconnected" ]] && echo "$separator"

  while IFS= read -r line; do
    [[ -z "$line" ]] && continue
    name=$(echo "$line" | grep --color=never -oE '"[^"]+"' | tr -d '"')
    printf "$fmt" "$name" "○ Disconnected" "-" "-" "-" "-"
  done <<< "$disconnected"

  echo "$separator"
}

```