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Re: 100% used / file system. Help!

On Thu, Sep 22, 2011 at 04:12:17PM +0100, Lisi wrote:
> On Wednesday 21 September 2011 22:54:54 Jörg-Volker Peetz wrote:
>  [snip]

> Tux:/home/lisi# du -hx --max-depth=1 / | sort -h
> sort: invalid option -- h
> Try `sort --help' for more information.
> Tux:/home/lisi# du -hx --max-depth=1 / | sort -n
> 0       /dev
> 0       /proc
> 0       /sys
> 3.4M    /root
> 3.7G    /usr
> 4.0K    /backup
> 4.0K    /home
> 4.0K    /mnt
> 4.0K    /selinux
> 4.2M    /bin
> 6.2M    /sbin
> 11M     /etc
> 16K     /lost+found
> 17M     /boot
> 23G     /media
> 27G     /
> 70M     /lib
> 87M     /opt
> 104K    /tmp
> 200K    /srv
> 662M    /var
> Tux:/home/lisi# du -hx --max-depth=1 /media | sort -n
> 4.0K    /media/cdrom0
> 4.0K    /media/cdrom1
> 4.0K    /media/floppy0
> 4.0K    /media/sdc2
> 4.0K    /media/sdc6
> 4.0K    /media/USB-HDD
> 22G     /media/sdc1
> 23G     /media
> 164M    /media/Distros

As an aside, this is why I don't recommend using "du -h" with "sort -n".
"du -h" is a great way to see where your space is being used, as it
presents the sizes in human readable format. However, "sort -n" sorts
numerically but critically, it doesn't know that, in this instance, 23G
is larger than 164M. Ideally you need to either use full numeric sizes
("du -b" should do) and sort on those or find some method of sorting
that knows about SI prefixes.

There are, of course, plenty of disk space visualisers in debian (ncdu,
gdmap and so on), but the problem here was to find the largest
file/directory without installing extra packages.

Darac Marjal

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