New To A Dedicated Server - Command Line Help

I have been with dreamhost for years and years starting with a shared server, then to a VPS, and just now moved into a dedicated server. Because there are no ram and load graphs, I will need to monitor these through ssh.

I would be grateful for some noob help. When trying to ssh in I get stuck. I have to upload my key to:

I am not sure how to access this, or if the key should be in a text file, or if I overwrite the known_hosts file.

Also, is there a command for monitoring load?

Thanks for any help provided. I’m comfortable experimenting, but I am somewhat new to this.

Woops, got it all figured out.

The only thing I need now it the reboot command.
Dummy, me . . . ignore this thread. I’m all set.