How to tell if homebrew is installed on Mac OS X
homebrew, macos, ruby-on-rails
Solution
`brew help`. If brew is there, you get output. If not, you get 'command not found'. If you need to check in a script, you can work out how to redirect output and check `$?`.
Problem
I am doing some Rails programming and I consistently see Homebrew referenced in solutions around the web but have never used it. I also notice Homebrew in the terminal version 2.9 as an option next to "Shell -> New" from the terminal drop down but when I select homebrew and issue commands, they fail. Usually with the "command not found" error. Strangely enough I have been unable to locate a simple command to determine whether brew is installed or not. How do I check to see if Homebrew is already installed on my Mac?