The ruby package provides the Ruby interpreter and adds support for the Ruby programming language. The ruby-devel package contains the libraries and header files needed for developing Ruby extensions.
Red Hat Enterprise Linux also ships with numerous ruby-related packages. By convention, the names of these packages have a ruby or rubygem prefix or suffix. Such packages are either library extensions or Ruby bindings to an existing library. For instance, ruby-dbus is a Ruby language binding for D-Bus.
Examples of ruby-related packages include:
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ruby-flexmock
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rubygem-flexmock
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rubygems
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ruby-irb
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ruby-libguestfs
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ruby-libs
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ruby-qmf
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ruby-qpid
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ruby-rdoc
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ruby-ri
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ruby-saslwrapper
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ruby-static
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ruby-tcltk
For information about updates to the Ruby language in Red Hat Enterprise Linux 6, refer to the following resources: