How do I update my gem system?

RubyGems

1. Update RubyGems. To update to its latest version with: gem update –system.
2. Install gems. To install a gem (Ruby package), run: gem install
3. List installed gems. gem list.
4. Update installed gems. To update all gems or a particular gem: gem update []
5. Remove old gem versions.

What is GEM update?

gem update –system only updates RubyGems. gem update will update all installed gems to their latest versions, so it will update Rails to 3.0. 0. Before updating the gems you can freeze your application to rails 2.3.8 by executing rake rails:freeze:gems. in your application folder.

How do I update my bundle version?

How to update the bundler version in a Gemfile. lock

1. Install the latest bundler version: Copy. gem install bundler Fetching bundler-2.1.2.gem Successfully installed bundler-2.1.2 1 gem installed.
2. Update the bundler version in you Gemfile.lock : Copy. bundle _2.1.2_ update –bundler.

How do I update RVM on my Mac?

RVM

1. Update RVM with rvm get stable –ruby.
2. Tell RVM to install new ruby with rvm install [version_number]
3. Change the ruby version in the app’s .ruby-version file.
4. Change the ruby version in the app’s Gemfile.
5. Rebuild your gems with bundle install.
6. Reload your terminal with source ~/.bash_profile.

How do I run RVM?

Examples of using RVM

1. RVM version.
2. Use a particular Ruby.
3. List Ruby interpreters available for installation.
4. List Ruby interpreters you’ve already installed.
5. Equivalent to “rvm use 2.1.1”, due to defaults.
6. Switch to the system user gems directory.
7. Use the user set default ruby.
8. Use the system ruby (as if no rvm)

Which is better RVM or Rbenv?

RVM is more resourceful but rbenv is lightweight which makes it a strong contender for RVM. RVM is used to manage and install different versions of Ruby and gemsets on system where Rbenv is a lightweight Ruby version management tool. Compared to RVM, rbenv does not manage gemsets nor install different Ruby versions.

Can I install RVM and Rbenv?

You can’t really have rbenv and rvm coexist. With rvm, it overrides the ‘gem’ command, so that would make rbenv useless. If you want to use rbenv for both, you’d have to avoid using gemsets and instead use bundler to handle dependencies.

How do I check my GEM version?

Since your goal is to verify a gem is installed with the correct version, use gem list . You can limit to the specific gem by using gem list data_mapper . To verify that it’s installed and working, you’ll have to try to require the gem and then use it in your code.

How to upgrade Ruby on RVM?

RVM supports few ways of upgrading itself. Every month or two a stable release of RVM is created, it includes minor version increase. Between releases only bugfixes and ruby version updates are added to it with teeny version update. Normal development and major changes continue on the master branch to install it use head version.

What is the difference between RVM stable and latest version?

This has changed, as mentioned above RVM stable is released and only bugfixes / ruby version updates are applied to it. The current equivalent of latest is stable and should be used instead. When updating very old versions head should be used and can be followed by stable. obtains the given branch possibly from the given owner, examples:

What is rubyrvm and how does it work?

RVM gives you compartmentalized independent ruby setups. This means that ruby, gems and irb are all separate and self-contained – from the system, and from each other. You may even have separate named gemsets. Let’s say, for example, that you are testing two versions of a gem, with ruby 2.1.1.

Can I have multiple versions of a gem set?

You may even have separate named gemsets. Let’s say, for example, that you are testing two versions of a gem, with ruby 2.1.1. You can install one to the default 2.1.1, then create a named gemset for the other version, and switch between them easily.