I’m having trouble finding the command that would match % in normal mode. Or any command for that matter, i.e. yy to :yank.
Basically what I’m trying to do is make a oneliner like so,
:s/this/that/g | yank | undo | /* Move down one line */ | /* % */ | paste
You can do normal mode operations in command mode with normal/norm.
For example, to yank the current line, you’d want
:norm yy.