#include <gtk/gtk.h>
#include <stdlib.h>

void displayUI()
{
	GtkWidget* mainWindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);

	gtk_window_set_default_size(GTK_WINDOW(mainWindow), 400, 300);
	gtk_window_set_title(GTK_WINDOW(mainWindow), "GTK Simple Example");
	gtk_window_set_position(GTK_WINDOW(mainWindow), GTK_WIN_POS_CENTER_ALWAYS);

	gtk_signal_connect(GTK_OBJECT(mainWindow), "destroy", G_CALLBACK(gtk_main_quit), NULL);

	gtk_widget_show_all(mainWindow);
}

int main(int argc, char *argv[])
{
	gtk_init(&argc, &argv);

	displayUI();

	gtk_main();

	return EXIT_SUCCESS;
}

ruby .i.bak -pe 'sub "old", "new"' *

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
	char *buffer1 = (char *)calloc(5, sizeof(char));
	char *buffer2 = (char *)calloc(15, sizeof(char));
	char *tmp;
	
	strcpy(buffer2, "ls -a --color");
	strcpy(buffer1, argv[1]);

	// Indirizzi di memoria...
	printf("%p <-- buffer1\n", buffer1);
	printf("%p <-- buffer2\n", buffer2);
	printf("\n\n");

	// Stampa indirizzi...
	printf("Start code....\n");
	tmp=buffer1;
	while(tmp<buffer2+15)
	{
		printf("%p: %c (0x%x)\n", tmp, *tmp, *(unsigned int *)tmp);
		tmp++;
	}

	printf("\n");
	system(buffer2);
	return 0;
}