What command opens Ruby's REPL?

In Python, you simply open python without any arguments.

Solution

Use the irb (Interactive Ruby Shell) command.

https://en.wikipedia.org/wiki/Interactive_Ruby_Shell

Install ruby 3.3.x with rvm, missing psych gym
RSpec Stubbing out Date.today in order to test a method
rb-sys Failed to build on Windows latest: defines.h:43:11: fatal error: 'strings.h' file not found\n")
Split on regex (more than a character, maybe variable width) and keep the separator like GNU awk
Ruby: transform Hash-Keys
Ruby turn values inside a hash into local variables
CMS for ecommerce website in rails
Ruby CSV - get current line/row number
Convert Array of objects to Hash with a field as the key
Ruby gsub capturing groups
Regex / Ruby - split keeping delimiter
How can I unlock my gemfile so I can access the rails server?
What do I pass to schema_migration in ActiveRecord::MigrationContext#new
Ruby compiler for mac?
How to implement Enums in Ruby?
How to Connect the Ruby to the Postgresql?
Indenting generated markup in Jekyll/Ruby
Correct Decimal to Floating-Point using Big Integers in Ruby
Trouble with pod install of hermes engine on m1 mac
Add .class files path to JRuby run command line
How to determine if one array contains all elements of another array
unable to install cocoapods on macbook and latest revision of Ruby
Puppet error Unknown variable: 'ssh_user' for custom resource type in a custom module
How to define a class instance variable in Ruby Struct subclass?
Add custom fields to object in ROR application
Building a hash in a conditional way
How to revert/undo local changes to an Activerecord object?
Have a ruby script output what version of ruby is running it
Disabling GraphQL introspection requests on production
What is the easiest way to remove the first character from a string?