Hello, I am curious about the mismatch between du and ls. Apparently, du reports amount of 512 or 1024-K blocks, and ls lists the absolute value. But, why in some cases, a 1100 bytes file is reported by du as 4 x 512 bytes instead of 3 x 512bytes I note both use fstat(). Thanks for advice, --- Fabio Andrés Miranda Ingeniería en sistemas informáticos Universidad Latina - Costa Rica