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Questions[du](server)

Martin Hope
Codecraft
Asked: 2012-04-17 03:27:33 +0800 CST
  • 16

I'm trying to free up some disk space - if I do a df -h, I have a filesystem called /dev/mapper/vg00-var which says its 4G, 3.8G used, 205M left.

That corresponds to my /var directory.

If I descend into /var and do du -kscxh *, the total is 2.1G

2.1G + 200M free = 2.3G... So my question is, where is the remaining 1.7G ?

linux df du
Martin Hope
Alexander
Asked: 2012-02-21 21:48:18 +0800 CST
  • 23

I'm using zfs on my FreeBSD 9.0 x64 and pretty happy with it, but I find it hard to count directory real, not compressed, size.

Surely I can walk over the directory and count every file size with ls, but I'd expect some extra key for du for that purpose.

So, how can I tell the directory size for dir placed on zfs with compression on?

Thamk you in advance for the advice, I simple can't rememeber there is no such a 'simple' way, without 'find ./ -type d -exec ls -l '{}' \; | awk ...'!

freebsd zfs find ls du
Martin Hope
PeanutsMonkey
Asked: 2011-07-14 12:31:27 +0800 CST
  • 34

I am having a difficult time grasping what is the correct way to read the size of the files since each command gives you varying results. I also came across a post at http://forums.devshed.com/linux-help-33/du-and-ls-generating-inconsistent-file-sizes-42169.html which states the following;

du gives you the size of the file as it resides on the file system. ( IE will will always give you a result that is divisible by 1024 ).

ls will give you the actual size of the file.

What you are looking at is the difference between the actual size of the file and the amount of space on disk it takes. ( also called file system efficiency ).

What is the difference between as it resides on the file system and actual size of the fil

linux ls du
Martin Hope
Tom Feiner
Asked: 2009-02-26 05:42:42 +0800 CST
  • 1346

I need to get a list of human readable du output.

However, du does not have a "sort by size" option, and piping to sort doesn't work with the human readable flag.

For example, running:

du | sort -n -r

Outputs a sorted disk usage by size (descending):

du |sort -n -r
65108   .
61508   ./dir3
2056    ./dir4
1032    ./dir1
508     ./dir2

However, running it with the human readable flag, does not sort properly:

du -h | sort -n -r

508K    ./dir2
64M     .
61M     ./dir3
2.1M    ./dir4
1.1M    ./dir1

Does anyone know of a way to sort du -h by size?

linux bash du gnu
Martin Hope
Andreas Kuntzagk
Asked: 2009-08-22 03:23:19 +0800 CST
  • 39

I have a fileserver where df reports 94% of / full. But according to du, much less is used:

# df -h /
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda3             270G  240G   17G  94% /
# du -hxs /
124G    /

I read that open but deleted files could be responsible for it but a reboot did not fix this.

This is Linux, ext3.

regards

linux filesystems df du