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Installing Ruby 1.8.5 on Ubuntu

10 Feb

Great how-to is located at http://www.rubywizards.com/viewtopic.php?pid=19 Here’s the copy of it:

* Bring up the terminal, login as system root, and create temporary directory to store downloaded files.
[~/] su
[~/] mkdir local
[~/] cd local

* Download official source distribution. This will create a file named ruby-1.8.5.tar.gz in your local directory.
[~/local] wget ftp://ftp.ruby-lang.org/pub/ruby/ruby-1.8.5.tar.gz

* Extract all the files from downloaded archive. This will create local/ruby-1.8.5 subdirectory that stores extracted files.
[~/local] tar xvfz ruby-1.8.5.tar.gz

* Install GNU C++ compiler you’ll need to build Ruby from source.
[~/local] apt-get install build-essential

* Run configure utility to determine your system configuration.
[~/local] cd ruby-1.8.5
[~/local/ruby-1.8.5] ./configure

* Run make command to compile and build Ruby.
[~/local/ruby-1.8.5] make

* Test newly built Ruby executable by running regression test suite. Upon successfull completion you’ll see a message like: “Finished in 44.904424 seconds. 1440 tests, 13585 assertions, 0 failures, 0 errors.”
[~/local/ruby-1.8.5] make test-all

* Install Ruby onto your system. This will move Ruby executable and utilities to /usr/local/bin and standard Ruby libraries to /usr/local/lib/ruby.
[~/local/ruby-1.8.5] make install

* Install Ruby documentation. This will compile Ruby documentation in format required for ri command.
[~/local/ruby-1.8.5] make install-doc

At this point the installation of Ruby 1.8.5 is complete. If you had previous version of Ruby installed in /usr/local/bin, you should take two extra steps:

* Make sure /usr/local/bin comes before /usr/bin in your $PATH:
[~/local/ruby-1.8.5] echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games

* Logout from your current terminal session and login again to reload hashed value of ruby:
[~/local/ruby-1.8.5] which ruby
/usr/local/bin/ruby
[~/local/ruby-1.8.5] ruby -v
ruby 1.8.5 (2006-08-25) [i686-linux]

Mike Dvorkin, Ruby Wizards Admin
http://www.rubywizards.com

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Posted by on February 10, 2007 in Linux, Ruby/Rails, Ubuntu

 

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