When running programs from terminal just enter the name and then hit
[Enter], you don't type 'Run' or 'Open' in front - if there's a
program of the name you entered then it will automatically start and
if not then a message that 'what you typed' isn't a valid program or
command.

BTW - a neat function of terminal is that it remembers command from
the last session even if you've shut down and re-booted since