If you wake up from amnesia, and found yourself near computer, first thing you need to type is
whoami. After that, you probaly want to type
history to recall whats happened. Third logical question would be
whereami, but unfortunatelly command does not exist by default. So prepare yourself to sudden amnesia now, and add to your aliases:
alias whereami='curl ifconfig.co/json'
It will show your ip and location. Also useful to check which VPN are you using.