Bring OS X VPN connections up/down from bash

vpn_functions.sh

#! /bin/bash
# Bash functions for connecting/disconnecting to a VPN provider under OS X.
# Define additional routes at the end of vpn-connect if needed.
#
# Source:
# http://superuser.com/questions/358513/start-configured-vpn-from-command-line-osx

export VPN_NAME='My VPN' # Name of your VPN connection profile
export VPN_INTERFACE='ppp0' # VPN interface (fixed)

function vpn-connect {
/usr/bin/env osascript <<-EOF
tell application "System Events"
        tell current location of network preferences
                set VPN to service "${VPN_NAME}"
                if exists VPN then connect VPN
                repeat while (current configuration of VPN is not connected)
                    delay 1
                end repeat
        end tell
end tell
EOF
# Define additional routes for VPN_INTERFACE. Edit and uncomment if needed
# sudo route -n add 10.20.0.0/16 -interface ${VPN_INTERFACE}
}

function vpn-disconnect {
/usr/bin/env osascript <<-EOF
tell application "System Events"
        tell current location of network preferences
                set VPN to service "${VPN_NAME}"
                if exists VPN then disconnect VPN
        end tell
end tell
return
EOF
}

function vpn-toggle {
        ifconfig ${VPN_INTERFACE} >/dev/null 2>&1 && vpn-disconnect || vpn-connect
}