From: utzoo!henry
Newsgroups: hacknews
Title: disk crisis, du(1) 
Article-I.D.: utzoo.2745
Posted: Wed Jan 12 20:42:50 1983
Received: Wed Jan 12 20:42:50 1983

We are very short of disk space on /zoo, so cleanup messages are going out.
Also, du(1) has acquired a new option:  -o permits measuring disk usage of
files "older" than a specific time (not accessed since then).