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I just built RHEL 6 and I need to be able to install ruby gems, etc. I have the ruby 1.8.7 packages installed but there is no gem command anywhere? What gives?

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Have you tried find / --name gem? If it's a new system it shouldn't take too long to search. If that doesn't return any results it might not be installed, do a yum list *gem*, pick the most relevant result and install it. Not really a proper answer (Unless it works, in which case it was ^_^) – sam May 31 '11 at 16:32

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up vote 3 down vote accepted

You probably have to install RubyGems. Try:

yum install rubygems

If it fails, try installing it by hand:

wget http://rubyforge.org/frs/download.php/74922/rubygems-1.8.4.tgz
tar xzpvf rubygems-1.8.4.tgz
cd rubygems-1.8.4
ruby setup.rb
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This worked. Thank you! – NJ01 May 31 '11 at 17:41

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