tldr/pages/common/ruby.md

ruby

Ruby programming language interpreter. More information: https://www.ruby-lang.org.

• Start a REPL (interactive shell):

irb

• Execute a Ruby script:

ruby {{script.rb}}

• Execute a single Ruby command in the command-line:

ruby -e {{command}}

• Check for syntax errors on a given Ruby script:

ruby -c {{script.rb}}

• Show the version of Ruby you are using:

ruby -v