tldr/pages/common/ruby.md

ruby

Ruby programming language interpreter. See also: gem, bundler, rake, irb. More information: https://manned.org/ruby.

• 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}}

• Start the built-in HTTP server on port 8080 in the current directory:

ruby -run -e httpd

• Locally execute a Ruby binary without installing the required library it depends on:

ruby -I {{path/to/library_folder}} -r {{library_require_name}} {{path/to/bin_folder/bin_name}}

• Display Ruby version:

ruby -v