ssh_connect.rb

#!/usr/bin/env ruby -wKU

servers = [
    {:id => 0, :alias => "aiko", :ip => "server_ip", :login => "ssh_login", :port => "ssh_port"}
  ]

# Read from command line
server_id = ARGV[0].to_i if !ARGV[0].nil?

# Read from input
if server_id.nil?
   servers.each do |server|
     puts "[#{server[:id]}] #{server[:alias]}"
   end
   server_id = gets
end

server_id = server_id.to_i

puts "Connecting to #{servers[server_id][:login]}@#{servers[server_id][:ip]} port #{servers[server_id][:port]}"

exec "ssh #{servers[server_id][:login]}@#{servers[server_id][:ip]} -p #{servers[server_id][:port]}"