GNU nano is a small, modeless terminal editor: what you type is inserted unless you hold Ctrl and press a shortcut. It shows common shortcuts at the bottom (^ means Ctrl). Nano is ideal for quick config edits on servers when you do not want to learn modal editing yet.
ℹ️nano is often preinstalled. If not, install via your distro package manager (for example apt install nano on Debian/Ubuntu).
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