BCD

Command-line tools › G

Run gnu-which from ChatGPT or Claude

GNU implementation of which utility. With BCD, ChatGPT, Claude and other AI apps can install and run gnu-which on your own computer and read what it prints.

Works on

About gnu-which

Version
2.25
License
GPL-3.0-or-later
Installs (last 365 days)
2,611 · #1,683 in Homebrew
Homepage
savannah.gnu.org/projects/which
Install
brew install gnu-which

Try asking

“Install gnu-which with Homebrew and show me its version”
“Read gnu-which --help and give me three useful examples for my files”
“Update gnu-which and tell me what changed”

Questions

Can ChatGPT run gnu-which on my computer?
Yes. With BCD on your Mac or Linux computer and command permission turned on for it, ChatGPT runs gnu-which there and reads the output. Claude and other apps with MCP connectors can too.

Do I need to install gnu-which first?
No. If Homebrew is installed, the AI can run brew install gnu-which for you.

Is it safe?
A new computer starts read-only: running commands is turned on per computer, and BCD reaches only the folders you allow.

Try it on your computer

BCD connects ChatGPT, Claude and other AI apps to your own Mac, Windows or Linux computer. One computer is free, with 20,000 tool calls a month and no card.

Program data from Homebrew, updated 2026-11-11. Installs are Homebrew's installs on request over the last 365 days.