91
91
and the DF_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environment variables.
92
92
Otherwise, units default to 1024 bytes (or 512 if POSIXLY_CORRECT is set).
95
KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y.
95
are K, M, G, T, P, E, Z, Y (powers of 1024) or KB, MB, ... (powers of 1000).
97
97
Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.