ubuntu8.04编译安装ruby-1.8.6-p114

1.安装build工具
sudo aptitude install build-essential linux-headers-$(uname -r) 


2.安装readline zlib libncurses5
apt-get install zlib1g-dev
apt-get install libreadline5 libreadline5-dev
apt-get install libncurses5 libncurses5-dev


3.安装ruby
ruby的源代码下载:
http://www.ruby-lang.org/en/downloads/
wget ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p114.tar.gz
tar xvfz ruby-1.8.6-p114.tar.gz
cd ruby-1.8.6-p114
./configure  --prefix=/usr/local/ruby
sudo make
sudo make install 

安装好以后,加入/usr/local/ruby/bin到操作系统的PATH环境变量中
编辑/etc/environment
gedit /etc/environment

在最后面加入:
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/ruby/bin"

执行命令,使环境变量修改生效:
source /etc/environment


4.安装gem
wget http://rubyforge.org/frs/download.php/29548/rubygems-1.0.1.tgz
tar xzvf rubygems-1.0.1.tgz
cd rubygems-1.0.1
sudo ruby setup.rb 


验证gem是否安装成功并升级
sudo gem update --system


5.安装rails
sudo gem install rails --include-dependencies 

安装好rails以后,验证是否安装成功,可以执行:
rails –v

确认一下rails的版本

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