Ruby3.1

• erb3.1(1) is a command line front-end for library, which is an implementation of eRuby.
• gem3.1(1) frontend to RubyGems, the Ruby package manager
• irb3.1(1) is the REPL(read-eval-print loop) environment for Ruby programs.
• rdoc3.1(1) Generate documentation from Ruby script files
• ri3.1(1) is a command-line front end for the Ruby API reference.
• ruby3.1(1)
• ruby3.1(1) Ruby is an interpreted scripting language for quick and easy object-oriented programming.