Rubyで別のRubyを呼び出すmain.rb puts “start” IO.popen(“ruby sub.rb”) do |f| f.each do |line| print line end end puts “finish”sub.rb STDOUT.sync = true #文字列を全て受け取る puts “sub start” sleep 4 puts “sub end”実行結果 start sub start su…

Rubyでメール送信 require “net/smtp” require “time” smtp_server = “localhost” from = “user@mail.example.com” to = “user@mail.subdomain.com” Net::SMTP.start(smtp_server) do |smtp| From: #{from} To: #{to} Date: #{Time.now.rfc2822} Subject: te…