How to clear IPython console in Spyder?

[nilamo]

!cls works well for me(!clear didn't, but that's fine).

My guess is that ! just pushes whatever follows it to the underlying shell. In windows, cls clears the screen, while the same thing is clear in bash.

to erase all variables through a command.

Why would you want to do that? Just stop using those variables if you don't want to use them, lol.