#include <stdio.h>
int main ( int argc, char *argv[] )
{
  if (argc!=2){
    printf("usge: %s filename", argv[0]);
  }
  FILE *file = fopen ( argv[1], "r" );
  if ( file != NULL )
    {
      int line_size = 128;
      char line [ 100 ]; /* or other suitable maximum line size */
      while ( fgets ( line, line_size, file ) != NULL ) /* read a line */
	{
	  fputs ( line, stdout ); /* write the line */
	}
      printf("\n");
      fclose ( file );
    }
  else
    {
      perror ( argv[1] ); /* why didn't the file open? */
    }
  return 0;
}