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Is there a way to determine what version of Ruby is running from within Rails (either on the web or through script/console)? I have Ruby 1.8.6 installed but I've also installed Ruby Enterprise Edition 1.8.7-20090928 and want to ensure that it's using the right installation.
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Step 1: Check Ruby VersionOpen the command prompt and type ruby -v. If Ruby responds, and if it shows a version number at or above 2.2. 2, then type gem --version. If you don't get an error, skip Install Ruby step.
You can see if it is using rbenv by typing which ruby and it should print something out with . rbenv/ whatever. If not you need to set rbenv as your current ruby.
Use this global constant:
RUBY_VERSION Other relevant global constants include:
RUBY_PATCHLEVEL RUBY_PLATFORM RUBY_RELEASE_DATE Usage example via irb session:
irb(main):001:0> RUBY_VERSION => "1.8.7" If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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