centos install ruby 1.9

CentOS is a great Linux distro with possibly the worst selection of up-to-date packages. I love the ease of use of CentOS and the close ties to RedHat, but using it often means that I need to compile the libraries I need from source.

$ sudo yum groupinstall 'Development Tools'

$ sudo yum install readline-devel

$ cd /usr/local/src

$ wget ftp://ftp.ruby-lang.org//pub/ruby/1.9/ruby-1.9.2-p180.tar.gz

$ tar xzvf
 ruby-1.9.2-p180.tar.gz

$ cd 
ruby-1.9.2-p180

$ ./configure && make

$ sudo make install

Everything you need is in the development tools, except for readline-devel.