Script to connect and disconnect to/from openconnect without pain

openconnect.sh

#!/bin/bash

# This script connects the computer to a vpn server using openconnect without pain

prog_name=$(basename $0)

# CHANGE YOUR_VPN_SERVER_DOMAIN to the VPN server you know like example.com
domain=YOUR_VPN_SERVER_DOMAIN

function help {
	echo "Usage: $prog_name [-c server] [-d]"
	echo
	echo "Options"
	echo "    -c, --connect <subdomain>  Connect to the specified VPN server (subdomain.domain)"
	echo "    -d, --disconnect           Disconnect the running VPN"
	echo
}

function connect {
	server=$1.$domain
	echo "Connecting to $server..."
	sudo openconnect -b $server < ~/Documents/vpnmakers.txt
}

function disconnect {
	echo "Disconnecting..."
	sudo pkill -SIGINT openconnect

	# Remove default gateway route rule when there is already a PPTP connection
	# Uncomment line below if your computer is connected to internet through a PPTP connection
	ip r | grep ppp0 && ip r | grep default | head -n1 | xargs sudo ip r del
}

subcommand=$1
case $subcommand in
	"" | "-h" | "--help")
	help
	;;
	"-c" | "--connect")
	shift
	connect $@
	;;
	"-d" | "--disconnect")
	disconnect
	;;
	*)
	echo "Error: '$subcommand' is not a known command." >&2
	echo "       Run '$prog_name --help' for a list of known commands." >&2
	exit 1
	;;
esac