How to install Ruby 1.8.7 on centos 5.5

Link: http://heatware.net/linux-unix/how-to-install-ruby-1-8-7-centos-5-5/

Have you ever tried to run the yum install Ruby command on centos 5.5? If you use the default application library configuration, you will find that you have installed Ruby 1.8.5 of the old version. If you are not ready to upgrade to Ruby 1.9, but you are ready to install Ruby 1.8.7, please refer to it!

1 yum install -y gcc zlib zlib-devel 
2 wget ftp://ftp.ruby-lang.org/pub/ruby/ruby-1.8.7-p334.tar.gz 
3 tar xvf ruby-1.8.7-p334.tar.gz 
4 cd ruby-1.8.7-p334 
5 ./configure --enable-pthread 
6 make 
7 make install 

* Translator's note: when translating this article, the latest stable release version of Ruby 1.8 is 1.8.7-p334, so the above command has been modified accordingly.