Installing Ruby gems not working with Home Brew

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The gems I install via sudo gem install ... can't be executed (I get a command not found). They seem to install into /usr/local/Cellar/ which is Brew's install directory (also, the gems in /Library/Ruby/ don't work either). Is there anything else I need to do to make the gems executable? I'm using ZSH on Mac OS X 10.6 with Ruby v1.8 for the one in Brew.

EDIT: It seems to be working now. I just went out for a few hours and came back to try it again.

homebrew gem macos ruby bash
7 Answers

Using the info in Timo's answer, I've got this:

PATH=/usr/local/opt/ruby/bin:$PATH
GEMSDIR=$(gem environment gemdir)/bin
PATH=$GEMSDIR:$PATH
export PATH

Works for Homebrew, works for the separate gems directory, and doesn't hardcode a Ruby version.

user_3990070
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