# Upload the file
    obj.write(
      file: params[:file],
      acl: :public_read
    )
 

class UploadsController < ApplicationController
 
  def new
 
  end
 
  def create
 
  	# Make an object in your bucket for your upload
    obj = S3_BUCKET.object(params[:file].original_filename)
 
    # Upload the file
    obj.write(
      file: params[:file],
      acl: :public_read
    )
 
    # Create an object for the upload
    @upload = Upload.new(
			url: obj.public_url,
			name: obj.key
		)
 
    # Save the upload
    if @upload.save
      redirect_to uploads_path, success: 'File successfully uploaded'
    else
      flash.now[:notice] = 'There was an error'
      render :new
    end
  end
 
  def index
  	@uploads = Upload.all
  end
end
 

Parameters:

{"utf8"=>"✓",
 "authenticity_token"=>"KNpjxo3vZBXKpno9JVGJXu69fxBpwjNdfY8p1f9fleaaecfk3I7avRk42v5FqKwIqMS6puX2Qm9GJhrn5rCB+w==",
 "file"=>
  #<ActionDispatch::Http::UploadedFile:0x007ff0a8030890
   @content_type="image/jpeg",
   @headers="Content-Disposition: form-data; name=\"file\"; filename=\"lake-louise-alberta.jpg\"\r\nContent-Type: image/jpeg\r\n",
   @original_filename="lake-louise-alberta.jpg",
   @tempfile=#<File:/tmp/RackMultipart20170815-9057-16b57sd.jpg>>,
 "commit"=>"Upload file"}

+---------+							+--------+
| DNS API |	--------------------------------------> 	| ROUTER |
+---------+							+--------+

+---------+				+-------------+				+---------+
| DNS API |	--------------------> 	| DNS REVERSE |	-------------------->	|  ROUTER |
+---------+				+-------------+				+---------+

#!/bin/ksh
 
#################################################
# Environment by ZafNat - izafnat@icloud.com    #
#################################################
 
if [ -z "$VISUAL" -a -z "$EDITOR" ]; then
	set -o emacs 
fi
 
alias h='fc -l'
alias j=jobs
alias m=$PAGER
alias ll='ls -laFo'
alias l='ls -l'
alias ls='ls -G'
alias vi='vim'
 
# Configuracion de teclas (Solo para editor modo emacs)
keybd_trap () {
  case ${.sh.edchar} in
    $'\f')    .sh.edchar=$'\e\f';;  # Limpiar pantalla
    $'\e[1~') .sh.edchar=$'\001';;  # Inicio
    $'\e[F')  .sh.edchar=$'\005';; # Fin
    $'\e[5~') .sh.edchar=$'\e>';;   # PgUp
    $'\e[6~') .sh.edchar=$'\e<';;   # PgDn
    $'\e[3~') .sh.edchar=$'\004';;  # Suprimir
  esac
}
trap keybd_trap KEYBD
 
# setup prompt
 
# # Modificar el prompt a: "username@hostname >"
 
PS1='$(print -n "\033[31m${USER}\033[00m ";if [[ "${PWD#$HOME}" != "$PWD" ]] then; print -n "\033[36m~${PWD#$HOME}\033[00m "; else; print -n "$PWD";fi;)'
 
case `id -u` in
        0) PS1="${PS1}$(print "\033[31m# \033[00m")";;
	*) PS1="${PS1}$(print "\033[31m> \033[00m")";;
esac
 

#include <stdio.h>
#include <string.h>
 
int main() {
 
	char tecla[5] = "AEIOU";
	char vo[1];
 
	printf("Una vocal mayuscula: ");
	scanf("%s",vo);
 
	printf("%c\n",tecla[3] );  /* Lo hace correctamente */
 
	printf("Esto esta %s\n",(strcmp(tecla[3],vo) == 0) ? "BIEN" : "MAL"); /* No es capaz de leer el dato */
 
	return 0;
}

# -*- coding: utf-8 -*- 
 
import wx
import wx.xrc
 
class MyFrame1 ( wx.Frame ):
 
	def __init__( self, parent ):
		wx.Frame.__init__ ( self, parent, id = wx.ID_ANY, title = wx.EmptyString, pos = wx.DefaultPosition, size = wx.Size( 50,80 ), style = wx.DEFAULT_FRAME_STYLE|wx.TAB_TRAVERSAL )
 
		self.SetSizeHintsSz( wx.DefaultSize, wx.DefaultSize )
 
		bSizer1 = wx.BoxSizer( wx.VERTICAL )
 
		self.m_button1 = wx.Button( self, wx.ID_ANY, u"MyButton", wx.DefaultPosition, wx.DefaultSize, 0 )
		bSizer1.Add( self.m_button1, 0, wx.ALL, 5 )
 
 
		self.SetSizer( bSizer1 )
		self.Layout()
 
		self.Centre( wx.BOTH )
 
		# Connect Events
		self.m_button1.Bind( wx.EVT_BUTTON, self.m_button1OnButtonClick )
 
	# Virtual event handlers, overide them in your derived class
	def m_button1OnButtonClick( self, event ):
		if self.m_button1.GetLabel() == "MyButton":
			self.m_button1.SetLabel("OTRO")
			while self.m_button1.GetLabel() == "OTRO":
				print "hola"
		else:
			self.m_button1.SetLabel("MyButton")
 
 
Window = wx.App(False)
Principal = MyFrame1(None)
Principal.Show(True)
Window.MainLoop()

Error	1	Ninguna sobrecarga para el método 'Show' acepta '3' argumentos

DialogResult result = MessageBox.Show(msg.ToString(), "Modificar",MessageBoxButtons.YesNo);

MySqlConnection conn = new MySqlConnection(connectionString);
                MySqlCommand command = conn.CreateCommand();
                command.CommandText = "select login,password from usuarios where login='" + vUsuario + "' and password='" + vPasswd + "' LIMIT 1;";
                conn.Open(); // Activa la conexión ## conn.Close(); cierra las conexiones 
                MySqlDataReader reader = command.ExecuteReader();
                if (reader.HasRows)
                {
                    while (reader.Read())
                    {
                        if (Convert.ToString(reader["login"]) == vUsuario && Convert.ToString(reader["password"]) == vPasswd)
                        {
                            MessageBox.Show("Bien hecho, tu usuario y contraseña son correctos", "Conectado");
                        }
                        else
                        {
                            MessageBox.Show("Su usuario o contraseña son erroneos", "Error");
                        }

if (Convert.ToString({"0"}) == vUsuario && Convert.ToString({"1"}]) == vPasswd)