A simple Bash script for quickly connecting to or disconnecting from VPNs on macOS via the command line.

manage_vpn.sh

#!/bin/bash

# Check if scutil command is available
if ! command -v scutil &> /dev/null; then
    echo "Error: scutil command not found."
    exit 1
fi

# Get the list of VPN services
vpn_list=$(scutil --nc list | grep 'VPN' | awk -F'"' '{print $2}')

# Check if any VPNs are found
if [ -z "$vpn_list" ]; then
    echo "No VPNs found."
    exit 1
fi

# Display VPN options with status
echo "Available VPNs:"
index=1
while IFS= read -r vpn_name; do
    status=$(scutil --nc status "$vpn_name" | grep -v 'NEStatus' | grep 'Status :' | awk '{print $3}')
    status_text=$([ "$status" -eq 2 ] && echo "Connected" || echo "Disconnected")
    printf "%d) %s\t(%s)\n" $index "$vpn_name" "$status_text"
    ((index++))
done <<< "$vpn_list"

# Prompt user to select a VPN or quit
read -p "Select a VPN number or (q)uit: " vpn_index

# Check if the user wants to quit
if [[ "$vpn_index" == "q" ]]; then
    echo "Exiting."
    exit 0
fi

# Validate input
if ! [[ "$vpn_index" =~ ^[0-9]+$ ]] || [ "$vpn_index" -lt 1 ] || [ "$vpn_index" -gt "$(wc -l <<< "$vpn_list")" ]; then
    echo "Invalid selection."
    exit 1
fi

selected_vpn=$(sed "${vpn_index}q;d" <<< "$vpn_list")
current_status=$(scutil --nc status "$selected_vpn" | grep -v 'NEStatus' | grep 'Status :' | awk '{print $3}')

# Perform action based on current status
if [ "$current_status" -eq 2 ]; then
    echo "Disconnecting from $selected_vpn..."
    scutil --nc stop "$selected_vpn"
    target_status=0
else
    echo "Connecting to $selected_vpn..."
    scutil --nc start "$selected_vpn"
    target_status=2
fi

# Function to get current VPN status
get_vpn_status() {
    scutil --nc status "$1" | grep -v 'NEStatus' | grep 'Status :' | awk '{print $3}'
}

# Wait for status change
while true; do
    new_status=$(get_vpn_status "$selected_vpn")
    if [ "$new_status" -eq "$target_status" ]; then
        status_text=$([ "$new_status" -eq 2 ] && echo "connected" || echo "disconnected")
        echo "$selected_vpn is now $status_text."
        break
    fi
    sleep 1
done

Simplified macOS VPN Management Script

This Bash script provides a straightforward command-line interface for managing VPN connections on macOS. It simplifies the process of connecting to and disconnecting from VPNs configured in your system preferences.

Features:

• Automatically detects and lists all configured VPN connections on your Mac.
• Displays the current connection status of each VPN.
• Allows you to select a VPN from the list using a simple numerical input.
• Automatically connects to disconnected VPNs or disconnects from connected VPNs based on their current status.
• Provides real-time feedback on the connection/disconnection process.
• Waits for and confirms the status change before exiting.

Usage:

1. Save the script to a file (e.g., manage_vpn.sh).
2. Make it executable: chmod +x manage_vpn.sh
3. Run the script: ./manage_vpn.sh
4. Follow the on-screen prompts to select and manage your VPN connection.

Requirements:

• macOS (uses the scutil command for VPN management)
• Bash shell

This script is ideal for users who prefer a quick, terminal-based method to toggle their VPN connections without navigating through the macOS System Preferences GUI.

Note: This script requires appropriate permissions to manage network connections. You may need to run it with sudo if you encounter permission issues.