Ruby is a dynamic object oriented programming language.
Rvm install ruby version 2 3.
Depending on your operating system the above command may use precompiled binaries or compile the ruby binaries from source.
To do this we will use the ruby version manager you installed when you did your original system install.
Curl ssl https get rvm io bash s stable ruby.
Install rvm development version.
To do this we have to run the following command gem update system.
Additionally with rails poor man s railsinstaller.
Curl ssl https get rvm io bash.
Then install the specific version of ruby that you need through rvm where ruby version can be typed as ruby 2 4 0 for instance or just 2 4 0.
Both tools are available for macos linux or other unix like operating systems.
Rvm install 2 6 1 rvm use 2 6 1 default.
Rvm list we can switch between the ruby versions by typing.
To upgrade from ruby 2 3 to 2 6 first you ll need to upgrade your version of ruby.
Rvm ruby version manager rvm allows you to install and manage multiple installations of ruby on your system.
Install rvm stable with ruby.
I ran rvm v and it returned rvm 1 29 1 so i ran rvm install 2 2 2 to upgrade the ruby version.
If you need a different newer version of rvm after installing base version of rvm check the upgrading section.
After the installation we can list the available ruby versions we have installed by typing.
To install a version of ruby using rvm use the command rvm install version number so to install version 2 6 3 of ruby enter the following into the terminal.
Rvm use system ruby v ruby 2 0 0p451 2014 02 24 revision 45167 universal x86 64 darwin13 to switch at any time to the ruby you have selected as default.
It can also manage different gemsets.
Searching for binary rubies this might take some time.
Rvm default ruby v ruby 2 1 1p76 2014 02 24 revision 45161 x86 64 darwin12 0 to show what ruby is currently the selected default if any do.
We need to upgrade our entire version of rubygems.
Ruby 2 2 2 removing rubies ruby 2 2 2.