Emacs: Ruler Mode
- Alt+x
ruler-mode
- Display a ruler at top of current window.

ruler-mode
Emacs Lines, Column, Cursor Position
Soft-Wrap Lines
Reformat Lines (Hard-Wrap)
- Emacs: Hard-Wrap Lines (fill-paragraph)
- Emacs: Reformat to Long Lines (unfill-paragraph)
- Emacs: Reformat Lines for Source Code 🚀