Re: script/app to compile statistics about disk usage? >one line
From: Paul E Condon (pecondon_at_mesanetworks.net)
Date: 07/31/04
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Date: Sat, 31 Jul 2004 11:48:19 -0600 To: debian-user@lists.debian.org
On Sat, Jul 31, 2004 at 08:47:47AM -0700, Matt Perry wrote:
> On Fri, 30 Jul 2004, Silvan wrote:
>
> > cooked up. What I want to do is look at my disks and gather statistics about
> > what is eating the most space. Where the biggest files are, which
> > directories are the largest, etc.
>
> What I do to see large directories is just 'du -sh *' starting at root and
> then drilling down from there. If you want to see what the largest files
> are, you can use this Perl script that Randal Schwartz wrote:
>
> #!/usr/bin/perl
> #
> # Usage: bigfiles <dir> [dir ...]
> #
> # Abstract: This script reports the top 20 largest files in one or
> # more specified directories, including subdirectories.
> #
> # By: Randal Schwartz <merlyn@stonehenge.com>
> # From the article at
> # http://www.stonehenge.com/merlyn/UnixReview/col16.html
>
> if ($#ARGV lt 0) {
> $0 =~ s#.*/##;
> print("Usage: $0 <dir> [dir ...]\n");
> exit 1;
> }
>
> use File::Find;
> find (sub {
> $size{$File::Find::name} =
> -s if -f;
> }, @ARGV);
> @sorted = sort {
> $size{$b} <=> $size{$a}
> } keys %size;
> splice @sorted, 20 if @sorted > 20;
> foreach (@sorted) {
> printf "%10d %s\n", $size{$_}, $_;
> }
>
My one liner is:
du / | sort -k 1,1nr | most
The sort gives a listing of du output in descending numerical order,
so the largest objects are at the top. The very largest object is /,
since everything else sits under it. If you run this as a user, you
get a bunch of error messages as it passes over the /proc system. If
you run this as root, those messages go away, and instead you get a
bunch of zero length at the end of the list.
(most is a better less. you can use less if you don't want to install
most.)
-- Paul E Condon pecondon@mesanetworks.net -- To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
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