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how to check ruby version Code Example
how to check ruby version 
// Command line:
$ ruby -v

// Within irb type "RUBY_VERSION"
# => "2.4.1"

// If using RVM:
$ rvm current
# => ruby-2.4.1
Source: blog.arkency.com
check all ruby version ubuntu 
rvm list

rvm rubies
   ruby-1.9.1-p431 [ i386 ]
=* ruby-1.9.2-p320 [ i386 ]
# => - current
# =* - current && default
#  * - default
Source: docs.bitnami.com



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Type:
 Code Example
Category:
 Coding
Sub Category:
 Code Example
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Horje