Ruby Gems

# Install
gem install httparty
gem install nokogiri -v 1.15.0       # specific version

# List and search
gem list --local httparty
gem search ^net-

# Info and paths
gem info httparty
gem which httparty

# Update and cleanup
gem update httparty
gem cleanup                           # remove old versions

source "https://rubygems.org"
ruby "~> 3.2"

gem "httparty", "~> 0.21"            # >= 0.21.0, < 1.0
gem "net-ssh", ">= 7.0"
gem "colorize", require: false

group :development do
  gem "rubocop"
  gem "pry"
end

group :test do
  gem "rspec"
end

bundle init                           # create Gemfile
bundle install                        # install deps
bundle exec ruby script.rb            # run in context
bundle update httparty                # update one gem
bundle info httparty

gem "foo", "1.2.3"       # exactly 1.2.3
gem "foo", ">= 1.2"     # 1.2 or higher
gem "foo", "~> 1.2"      # >= 1.2.0, < 2.0 (pessimistic)
gem "foo", "~> 1.2.3"    # >= 1.2.3, < 1.3.0

# HTTP
require "httparty"
response = HTTParty.get("https://api.example.com/status",
  headers: { "Authorization" => "Bearer #{token}" },
  timeout: 10
)
puts response.code
puts response.parsed_response

# SSH
require "net/ssh"
Net::SSH.start("10.50.1.40", "admin", password: pw) do |ssh|
  output = ssh.exec!("show version")
  puts output
end

# JSON (stdlib)
require "json"
data = JSON.parse(File.read("config.json"))
File.write("out.json", JSON.pretty_generate(data))