Skip to main content

How to install ruby on MAC

How to install ruby on MAC ?


Whenever you start the development of Ruby on Rails on MAC, the initial step is to install Ruby on Rails. You will learn how to install ruby on rails on MAC with this article.

Steps on how to install ruby on MAC and Important Commands useful for Ruby Developer:

1.  First of all you need to have RVM installed on your machine.

2.  Then use RVM to install Ruby on your machine by following command:

    rvm install ruby

Above command will install the latest stable version of Ruby on your machine.

3. Install a specific version of Ruby:

    - You can install specific version of ruby using following command:

 > rvm install 1.9.2  => This will install ruby's stable version of 1.9.2 release

> rvm install 2.0.0  => This will install ruby's stable version of 2.0.0 release

4. How to check version of Ruby installed on your machine?

    - You can use ruby --version command to check the version of Ruby currently in use.
    Sample Output:

> ruby --version
ruby 1.9.2p320 (2012-04-20 revision 35421) [x86_64-darwin13.0.0]

5. List Ruby versions installed on your machine

    - You can list versions of Ruby packages install on your machine by following command

 > rvm list
Sample Output:

rvm rubies

=* ruby-1.9.2-p320 [ x86_64 ]
ruby-1.9.3-p448 [ x86_64 ]
ruby-2.0.0-p247 [ x86_64 ]
ruby-2.0.0-p353 [ x86_64 ]

 # => - current

# =* - current && default

# * - default

6. Set Ruby version to be used:
- You can set which version to be used for the development by command:
 > rvm use ruby-1.9.3-p448
Using /Users/username/.rvm/gems/ruby-1.9.3-p448

7. Set Default Ruby version to be used:
   > rvm use ruby-1.9.3-p448 --default

This was all about how to install Ruby on MAC. Comments and Suggestions are appreciated.

Comments

Popular posts from this blog

Gem::LoadError (Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).?

Gem::LoadError (Specified 'mysql2' for database adapter, but the gem is not loaded. Add `gem 'mysql2'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).) In rails?


1)change the gemfile in mysql version
 gem 'mysql2'

2)Change to mysql2 version
 gem 'mysql2','0.3.20'

Active Scaffold : Add radio buttons to your form ruby on rails ?

Active Scaffold : Add radio buttons to your form ruby on rails ?

The way to add radio buttons to your active scaffold create/update from is as shown below

#Controller

class UsersController < ApplicationController
active_scaffold :user do |config|
config.label = “Users”
config.columns = [:name, :gender]
config.columns[:gender].form_ui = :radio
config.columns[:gender].options[:options] = [['Male', '1'], ['Female','2']]
end
end

Get user accessing ip address in rails?

Get user accessing ip address rails?

request.ip ->returns the ip, whether is is a local proxy ip (localhost address) or not.
*request.remote_ip -> is smarter and gets the ip address of the client outside of local proxies.
3)If you are using apache in front of a mongrel, then remote_ip will return the source address of the request, which in this case will be local host because the Apache web server is making the request, so instead put this in your controller:

@remote_ip = request.env["HTTP_X_FORWARDED_FOR"]