GNU nano

What is it?

GNU nano is a small, modeless text editor that shows its own keybindings at the bottom of the screen. There are no modes, no configuration language, and almost nothing to read before you can edit a config file. It is the default editor for many minimal distributions and installers, which is why so many "how to edit a file" guides start with nano.

Why use it?

Nano is the editor you reach for when correctness matters more than speed. It is already installed, it starts instantly, and its shortcuts are visible, so you never feel lost. For quick edits over SSH, editing /etc/fstab on a rescue system, or writing a note, it removes every obstacle between you and the text.

Key features

• Modeless editing with an always-visible shortcut bar
• Search and replace with regular expression support
• Syntax highlighting for common file types
• Multiple buffers, plus mouse support in recent versions
• Soft line wrapping and automatic indentation
• A tiny dependency footprint and wide availability

How it compares

Micro modernizes the same model with plugins, tabs, and multiple cursors, but is not preinstalled everywhere. Vim and Neovim are vastly more powerful once learned, but expect you to invest the time. Nano wins on immediacy: if you only edit text occasionally, it is enough.