Does this command overwrite the existing startup file?
Or if I use, copy tftp run, does it overwrite the existing running configuration?
If so, does it become immediately active?
Can I do a copy run tftp, then edit the config file with the way I want it to look with changes I want to make, and then do a copy tftp run and suddenly be running on the new configuration?
And if so, during my edit, do I have to include exit and no shutdown statements after entering interface configuration lines?