Command Not Found
Command Not Found helps users identify which package provides a missing command and how to install it.
About Command Not Found
Command Not Found is a web-based reference for Linux and Docker users who encounter an unknown or missing terminal command. It helps identify which package provides the command and how to install it. Its stated purpose is to help users install any command on any operating system and in Docker.
Each entry lists the command name with a short description of what it does. For example, entries explain that mknod creates device special files, csvpy loads a CSV file into a Python shell, and pass stores passwords using GPG encryption and Git. Entries also include a link to further documentation, such as project pages or manuals.
The site suits developers, system administrators, and others who work in the Linux terminal or with containers and need to understand unfamiliar commands and find their source package.
Key features
- Look up missing terminal commands by name
- Identify which package provides a command
- Show how to install commands
- Provide short descriptions of command functions
- Link to further documentation for each command
Best for: Linux users, developers, and system administrators who need to resolve missing commands in the terminal or Docker.
Good for
- Focused on missing Linux commands
- Includes descriptions with documentation links
- Covers operating systems and Docker
Command Not Found at a glance
- Website
- command-not-found.com
- Category
- Development › Developer Tools
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Command Not Found FAQ
What is Command Not Found?
It is a web tool that helps identify which package provides a missing command and how to install it.
What information does each command entry include?
Each entry includes a short description of the command and a link to further documentation.
Does Command Not Found cover Docker?
Yes. The site states it covers installing commands on operating systems and in Docker.
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