vbssh - Easy way to ssh in to VirtualBox guests with GueastAdditions installed

vbssh.bash

#!/usr/bin/env bash

# Prototype
#
# VirtualBoxSSH
# Makes ssh-ing in to my VirtualBox VMs piss easy. Only works
# with VMs that have the GuestAdditions installed.
#
# Usage: vbssh [user@]exact-name-of-guest
# (if no user defined user running the script will be used)
#
# Please note: This assumes the 2nd interface of the guest
# is used for ssh. If that is not the case, change the value
# of "/VirtualBox/GuestInfo/Net/1/V4/IP" accordingly. E.g. the
# 1st interface would be "/VirtualBox/GuestInfo/Net/0/V4/IP"

_CONN_STRING="${1}"
_CONN_ARRAY=(${_CONN_STRING//@/ })
_VMS_ACTIVE=($(VBoxManage list runningvms | awk '{print $1}' | tr -d '"'))

if [[ ${#_CONN_ARRAY[@]} -eq 1 ]]; then
    _USER=$(whoami)
    _VM_NAME=${_CONN_ARRAY[0]}
elif [[ ${#_CONN_ARRAY[@]} -eq 2 ]]; then
    _USER=${_CONN_ARRAY[0]}
    _VM_NAME=${_CONN_ARRAY[1]}
else
    (>&2 echo "Invalid input.")
    exit 1
fi

if [[ ! " ${_VMS_ACTIVE[@]} " =~ " ${_VM_NAME} "  ]]; then
    (>&2 echo "No running VM with name ${_VM_NAME} found. Exiting.")
    exit 1
else
    _VM_IPV4=$(VBoxManage guestproperty get ${_VM_NAME} "/VirtualBox/GuestInfo/Net/1/V4/IP" | awk '{print $2}')
fi

exec ssh ${_USER}@${_VM_IPV4}