char a;

while ((a = getchar()) != EOF)
 putchar (a);

#include <stdio.h>
#include <termios.h>
     
static struct termios stored_settings;
     
void set_keypress(void)
{
     struct termios new_settings;
     
     tcgetattr(0,&stored_settings);
     new_settings = stored_settings;
     new_settings.c_lflag &= (~ICANON);
     new_settings.c_cc[VTIME] = 0;
     new_settings.c_cc[VMIN] = 1;
     tcsetattr(0,TCSANOW,&new_settings);
}
     
void reset_keypress(void)
{
     tcsetattr(0,TCSANOW,&stored_settings);
     return;
}


int main()
{
     char c;
     int i;

     /* Call function to set terminal to buffer by only one char
     /* and deliver it inmediately, so we can now use getchar().
      */
     set_keypress();

     while ((c = getchar()) != EOF) {
	  if (c == 'q') break;
	  for (i = 0; i < 10 ; ++i)  {
	       printf("%c", c);
	  }
	  printf("\n");
     }

     /* Restore terminal to previous mode */
     reset_keypress();

     return 0;
}