Please install Homebrew(official) on your mac.
Install rbenv and ruby-build
At first, I recommend you to install rbenv and ruby-build. They enables you to control Ruby versions flexibly.
brew install rbenv ruby-build
Although I heard that this way tends to yield(don't catch up with the newest version of ruby), it is simple.
Just execute below
This command will add
eval "$(rbenv init -)" to your
Please check it like this
If you can't find out the line
export PATH="$HOME/.rbenv/bin:$PATH" and
eval "$(rbenv init -)", please add it by yourself.
export PATH="$HOME/.rbenv/bin:$PATH" eval "$(rbenv init -)"
After that, restart your terminal or reload your
.bash_profile with this command.
And you can check you could install
rbenv or not by this command
This command will return the version of
Choose the ruby version and install it.
OK, now we can get the list of the versions of Ruby with below.
rbenv install -l
This time, I assume that we chose
2.5.0 as the target.
rbenv install 2.5.0
Many commands will be executed.
After they are finished, try this.
and you can get like this
* system 2.5.0
This indicates you have
Ruby 2.5.0 but you are using the pre-installed Ruby.
So, let's change to the target ruby with below
rbenv global 2.5.0
Check your rbenv
For now, your mac is ready to use the
Ruby 2.5.0, but I recommend you to check the status of your
curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor | bash
This will indicate the install status of rbenv.
Top comments (4)
To prevent installing documentation for gems
gem update --system && gem updatebe more faster avoiding install or updating documentation for the gems
Thank you for your comment.
Avoiding the installation of documents is a good idea. It takes much time.
I will introduce your suggestion to my environment!
You saved me! Your explanation has the additional information that avoids issues with the Mac system ruby version that tripped me up for a little while. Thanks a lot : )