• telnet

telnet

gem install net-telnet

• server

#!/usr/bin/ruby 
#encoding:UTF-8
# my_server.rb
require 'text_protocols'

TextProtocols.start do
  cmd "say-hello" do
    "Hello #{params[:name]}"
  end
end

• client

#!/usr/bin/ruby 
# encoding: utf-8 
require 'net/telnet'
tn = Net::Telnet::new('Host' => '127.0.0.1',
	                     'Port' => 5000,
	                      'Telnetmode' => true)
tn.cmd("say-hello name=zhangsang\n") do |c|
      puts c
end

[maisipu@192 learn]$ /bin/sh /tmp/geany_run_script_L6FJ71.sh
Hello zhangsang

• http client

#!/usr/bin/ruby 
# encoding: utf-8 
require 'net/telnet'
tn = Net::Telnet::new('Host' => 'www.hn.chinanews.com.cn',
	                     'Port' => 80,
	                      'Telnetmode' => false)
tn.cmd("GET  http://www.hn.chinanews.com.cn/news/hwmtkhn/2023/0626/474786.html \n HTTP/1.1 \n") do |c|
      puts c
end