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Path: utzoo!henry
From: henry@utzoo.UUCP (Henry Spencer)
Newsgroups: alt.sources
Subject: Re: Short 'n' dirty file space totaller
Message-ID: <8738@utzoo.UUCP>
Date: Sat, 10-Oct-87 18:38:28 EDT
Article-I.D.: utzoo.8738
Posted: Sat Oct 10 18:38:28 1987
Date-Received: Sat, 10-Oct-87 18:38:28 EDT
References: <239@ddsw1.UUCP>
Organization: U of Toronto Zoology
Lines: 19
Keywords: Microport (or is it system V) disk utility

> Here's a real short, cheap-n-dirty disk usage tracker.  [40 lines of C]

Um, did you consider:

	du -s `awk -F: '{print $6}' /etc/passwd` | sed 's;.*/;;'

(Three assumptions:  your du has the -s option [I've never heard of one that
doesn't], the home directory is the sixth field in /etc/passwd, and the home
directories have names corresponding to the users.  Failures in these
assumptions can generally be bypassed by making it a bit fancier.)

This works just as well.  (Subject to the flaw that's common to any du-based
disk accounting, to wit updating the accessed-time on all directories.)
In general, if you find yourself writing a C program whose main job is to
invoke other programs, you should probably try to do it as a shell program
first.
-- 
"Mir" means "peace", as in           |  Henry Spencer @ U of Toronto Zoology
"the war is over; we've won".        | {allegra,ihnp4,decvax,utai}!utzoo!henry