When in a terminal, and I press up on the direction keys it remembers the previous command I sent. Does this action have a specific name, or community name?
Also, when I am logged in as 'user' the terminal remembers that user's last command, and then if I switch over to root it remembers my root's last command, not the user's. This makes me think that it is not some on the fly temporary recall, but that this information is actually stored somewhere.
Where is this file? How do I view its content?