Wolfram Schneider b8923d4cc0 [HISTORY] command appeared in Version 1 AT&T UNIX ... Obtained from: A Quarter Century of UNIX, Peter H. Salus, page 41		1996-08-29 18:06:19 +00:00
..
du.1	[HISTORY] command appeared in Version 1 AT&T UNIX	1996-08-29 18:06:19 +00:00
du.c
Makefile