How do I install gems on Mac?

How do I install a gem file on a Mac?

1 Answer. The command you’re looking for is gem install neography . To create a Gemfile for your application, you need to look into the bundler gem’s Gemfile. Basically, just create a file named Gemfile in your project root with a source and your list of gems and run the command bundle install .

How do I install gems?

To install a gem, use gem install [gem] . Browsing installed gems is done with gem list . For more information about the gem command, see below or head to RubyGems’ docs. There are other sources of libraries though.

What is gem macOS?

The interface for RubyGems is a command-line tool called gem which can install and manage libraries (the gems). RubyGems integrates with Ruby run-time loader to help find and load installed gems from standardized library folders. … The public repository helps users find gems, resolve dependencies and install them.

Where are RubyGems on Mac?

When RVM has installed a Ruby version, it will all be in ~/. rvm and your Gems will be nicely located there too. You’ll be able to manage the gems as gemsets, relative to each version of Ruby, and switch back and forth instantly.

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Where does gem install install to?

When you use the –user-install option, RubyGems will install the gems to a directory inside your home directory, something like ~/. gem/ruby/1.9. 1 . The commands provided by the gems you installed will end up in ~/.

How do I know what version of Ruby I have Mac?

Don’t type the $ character – the $ character is just a cue that you should enter a shell command. The ruby -v command will show you the Ruby version number.

How do I uninstall Ruby on Mac?

Uninstall Ruby on Mac with rbenv

For rbenv, use rbenv versions to see which versions you have installed. Use the uninstall command to remove a version. This will remove any gems associated with the version as well. If you want to reinstall Ruby, see Install Ruby on Mac for recommendations of newer version managers.

Is Gem installed on Mac?

0 or later, gem install rails should work, but it does not out of the box on a new macOS computer. … macOS returns this error because the default location for Ruby gem installations is the system Ruby directory that is preinstalled by Apple.

How do I know if gem is installed?

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 do I download Ruby Gems?

Installing Ruby on Rails

  1. Install Ruby. To do this, download the file rubyinstaller-1.8. …
  2. Install Gems (Ruby’s packaging mechanism). To do this, download the zip file rubygems-1.3.7.zip . …
  3. Use the Gem system to install Rails. To do this, invoke the following command: …
  4. Install Sqlite3.
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How do I install Homebrew on my Mac?

To install Homebrew, you’ll download an installation script and then execute the script. First, download the script to your local machine by typing the following command in your Terminal window: curl -fsSL -o install.sh https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh.

How do I install a specific version of a gem?

Use `gem install -v`

You may already be familiar with gem install , but if you add the -v flag, you can specify the version of the gem to install. Using -v you can specify an exact version or use version comparators.

How do I install a specific version of Ruby?

Get started with rbenv

  1. List the installed Ruby versions. To list the installed Ruby versions in your machine with rbenv, run the following command: rbenv version. …
  2. Install a Ruby version. To install a new Ruby version, use the rbenv install command: rbenv install VERSION. …
  3. Use a specific Ruby version for a project.