Three ways to install Ruby in Ubuntu system _linux

Ruby is an open source dynamic programming language that has beautiful syntax for building scalable Web applications. Ruby Gems can be a good way to improve the development efficiency of ruby developers.

There are several ways to install Ruby on an Ubuntu system, and each method takes only a few steps to get it done.

Method One: Use Apt-get installation

You can complete the installation of Ruby using two commands directly.

# sudo apt-get update
# sudo apt-get install ruby

Or

# sudo apt-get install ruby2.0

Method Two: Use Brightbox PPA warehouse installation

# sudo apt-get install python-software-properties
# sudo apt-add-repository ppa:brightbox/ruby-ng
# sudo Apt-get Update
# sudo apt-get install ruby2.1 Ruby2.1-dev

Method Three: Use RVM installation

RVM is the version Manager tool for Ruby.
1. Installation RVM

# sudo apt-get Curl
# curl-l Https://get.rvm.io | bash-s stable
# source ~/.RVM/SCRIPTS/RVM

2, the installation of RVM environmental dependence

# RVM Requirements

3. Install Ruby

# RVM Install Ruby

If you want to install more than one Ruby version on Ubuntu, you can use the following command to specify the use of RVM as the default Ruby version management.

# RVM Use Ruby--default

Check the version of Ruby that is currently successfully installed

# ruby-v

Install Gems

# Gem List
# gem install [gem-name]

Like Gem-name can write sass.

If you want to install gems locally, the commands are as follows:

# gem Install--local [path of gem file]

You can use the command to update installed gems, as follows:

# Gem Update--system

Or

# Gem Update

Original link: http://blog.csdn.net/chszs/article/details/42462517

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