Install latest/stable of Command Not Found (CNF)

Ubuntu 16.04 or later?

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Install using the command line

sudo snap install com-not-found

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Channel Version Published

Details for Command Not Found (CNF)

License

  • MIT

Last updated

  • 30 March 2026 - latest/stable

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Command-not-found terminal banner animation tool - Info card

Command Not Found (CNF) is a Linux terminal utility that turns a missing command into a styled local banner animation before returning the user to the normal terminal view.

This Snap is an info card and launcher. It will guide you to install the full version via .deb.

Features:

  • Animated command-not-found banner
  • Custom banner text
  • Adjustable speed
  • Local-first configuration
  • Includes a hidden feature — not shown until you find it.

Example: opps wrong command

CNF is part of the Little Al Network ecosystem, focused on simplicity, control, and transparency.


Install Command Not Found (CNF) on your Linux distribution

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