ps outputs a newline after every entry. What are you trying to accomplish?

Do you have a username that contains a newline character? If so… why?!

Given that Mac keybindings for “common special functions” (Open/Save/Cut/Copy/Paste/Find/etc.) use Command instead of Ctrl, leaving Ctrl effectively unused unless in combination with Command, this argument doesn’t hold much water.

Sure, some Emacs fan at Apple decided to add Emacs shortcuts to Cocoa controls, but that was a pretty arbitrary decision since people coming from Mac OS 9 didn’t use the Ctrl key, well, ever.