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https://github.com/Homebrew/homebrew-command-not-found
🔍 Ubuntu’s command-not-found equivalent for Homebrew on macOS
https://github.com/Homebrew/homebrew-command-not-found
cmd homebrew tap
Last synced: 7 days ago
JSON representation
🔍 Ubuntu’s command-not-found equivalent for Homebrew on macOS
- Host: GitHub
- URL: https://github.com/Homebrew/homebrew-command-not-found
- Owner: Homebrew
- License: mit
- Created: 2014-02-25T14:13:14.000Z (over 10 years ago)
- Default Branch: master
- Last Pushed: 2024-10-29T00:15:06.000Z (11 days ago)
- Last Synced: 2024-10-29T12:25:30.648Z (11 days ago)
- Topics: cmd, homebrew, tap
- Language: Ruby
- Homepage:
- Size: 9.43 MB
- Stars: 403
- Watchers: 18
- Forks: 48
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-starred-test - Homebrew/homebrew-command-not-found - 🔍 Ubuntu’s command-not-found equivalent for Homebrew on macOS (Ruby)
README
# Homebrew Command Not Found
This project reproduces Ubuntu’s `command-not-found` for Homebrew users on
macOS.
[](https://github.com/Homebrew/homebrew-command-not-found/actions)
On Ubuntu, when you try to use a command that doesn’t exist locally but is
available through a package, Bash will suggest you a command to install it.
Using this script, you can replicate this feature on macOS:
```bash
# on Ubuntu
$ when
The program 'when' is currently not installed. You can install it by typing:
sudo apt-get install when
# on macOS with Homebrew
$ when
The program 'when' is currently not installed. You can install it by typing:
brew install when
```
Over 5000 formulae are supported, representing more than 17000 different commands
(100% of the main Homebrew repo).
## Install
First, tap this repository:
```bash
brew tap homebrew/command-not-found
```
* **Bash and Zsh**: Add the following line to your `~/.bash_profile` (bash) or `~/.zshrc` (zsh):
```bash
HB_CNF_HANDLER="$(brew --repository)/Library/Taps/homebrew/homebrew-command-not-found/handler.sh"
if [ -f "$HB_CNF_HANDLER" ]; then
source "$HB_CNF_HANDLER";
fi
```
* **Fish**: Add the following line to your `~/.config/fish/config.fish`:
```fish
set HB_CNF_HANDLER (brew --repository)"/Library/Taps/homebrew/homebrew-command-not-found/handler.fish"
if test -f $HB_CNF_HANDLER
source $HB_CNF_HANDLER
end
```
## Requirements
This tool requires one of the following:
* [Zsh](https://www.zsh.org) (the default on macOS Catalina and above)
* [Bash](https://www.gnu.org/software/bash/) (version 4 and higher)
* [Fish](https://fishshell.com)
## How it works
When you tap the repo you’ll get two more `brew` commands: `brew which-formula`
and `brew which-update`. The first one uses a database file which gives you the
formula you have to install in order to get a specific command. The file is
generated by the second command by crawling all installed formulae and
collecting their binaries. Having this as a tap means you get an up-to-date
binaries database each time you run `brew update`.
The `handler.sh` script defines a `command_not_found_handle` function which is
used by Bash when you try a command that doesn’t exist. The function calls
`brew which-formula` on your command, and if it finds a match it’ll print it to
you. If not, you’ll get an error as expected.