[SOLVED] du -h vs ls -h

[banderas20]

Hello,

i am at the root of the filesystem.

If I run "du -h -d 1", I get

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56K	./root
870M	./var
686M	./home
3.7G	./usr
du: cannot access './run/user/1000/gvfs': Permission denied
41M	./run
9.7M	./bin
du: cannot access './proc/14174/task/14174/fd/4': No such file or directory
du: cannot access './proc/14174/task/14174/fdinfo/4': No such file or directory
du: cannot access './proc/14174/fd/3': No such file or directory
du: cannot access './proc/14174/fdinfo/3': No such file or directory
0	./proc
8.0K	./mnt
16K	./lost+found
8.0K	./media
8.8M	./etc
4.0K	./opt
4.0K	./.cache
8.0K	./srv
0	./sys
9.4M	./sbin
376K	./tmp
34M	./boot
0	./dev
233M	./lib
4.0K	./lib64
5.6G	.

Wich matches with the free space given by "df" command.

However, if i run "la -lah", i get only a bunch of KB:

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drwxr-xr-x  23 root root 4.0K Jul 22 13:24 .
drwxr-xr-x  23 root root 4.0K Jul 22 13:24 ..
drwxr-xr-x   2 root root 4.0K Jul  1 20:06 bin
drwxr-xr-x   3 root root 4.0K Jul  1 20:07 boot
drwx------   2 root root 4.0K Jun 18 20:44 .cache
drwxr-xr-x  17 root root 3.1K Jul 19 09:57 dev
drwxr-xr-x 126 root root  12K Jul 23 15:20 etc
drwxr-xr-x   4 root root 4.0K Jul  5 18:28 home
lrwxrwxrwx   1 root root   29 Jun 18 20:23 initrd.img -> boot/initrd.img-4.9.0-6-amd64
lrwxrwxrwx   1 root root   29 Jun 18 20:23 initrd.img.old -> boot/initrd.img-4.9.0-6-amd64
drwxr-xr-x  15 root root 4.0K Jun 18 20:43 lib
drwxr-xr-x   2 root root 4.0K Jun 18 20:23 lib64
drwx------   2 root root  16K Jun 18 20:22 lost+found
drwxr-xr-x   3 root root 4.0K Jun 18 20:22 media
drwxr-xr-x   3 root root 4.0K Jul  1 20:07 mnt
drwxr-xr-x   2 root root 4.0K Jun 18 20:23 opt
dr-xr-xr-x 183 root root    0 Jul 19 09:56 proc
drwx------   5 root root 4.0K Jul  2 18:54 root
drwxr-xr-x  27 root root  820 Jul 23 15:21 run
drwxr-xr-x   2 root root 4.0K Jul 19 10:10 sbin
drwxr-xr-x   3 root root 4.0K Jul  2 19:06 srv
dr-xr-xr-x  13 root root    0 Jul 23 15:22 sys
drwxrwxrwt  17 root root 4.0K Jul 23 15:39 tmp
drwxr-xr-x  10 root root 4.0K Jun 18 20:23 usr
drwxr-xr-x  12 root root 4.0K Jul  1 13:39 var
lrwxrwxrwx   1 root root   26 Jun 18 20:23 vmlinuz -> boot/vmlinuz-4.9.0-6-amd64
lrwxrwxrwx   1 root root   26 Jun 18 20:23 vmlinuz.old -> boot/vmlinuz-4.9.0-6-amd64

¿Why is that so? ¿Shouldn't they match?

Thanks!

[arzgi]

Try:

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df -h

[banderas20]

Try:

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df -h

df -h matshes with the result of du. But why ls gives me only a bunch ok KB? That command is also meant to count the size of files and folders.....

Thanks.

[arzgi]

Try:

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df -h

df -h matshes with the result of du. But why ls gives me only a bunch ok KB? That command is also meant to count the size of files and folders.....

Thanks.

Read man page, if you want to know what command is meant to do.

[Dai_trying]

NAME
df - report file system disk space usage

NAME
du - estimate file space usage

NAME
ls - list directory contents

The above should answer your question, but each of these commands can give different output depending on the parameters you pass to it.

ls simply lists directory contents (without additional parameters) and so would not normally show directory size information.

[banderas20]

ls simply lists directory contents (without additional parameters) and so would not normally show directory size information.

I understand, but I don't get what those sizes beside the date mean....

[arzgi]

ls simply lists directory contents (without additional parameters) and so would not normally show directory size information.

I understand, but I don't get what those sizes beside the date mean....

Size of file, and directories always 4,0K

[banderas20]

ls simply lists directory contents (without additional parameters) and so would not normally show directory size information.

I understand, but I don't get what those sizes beside the date mean....

Size of file, and directories always 4,0K

Mistery solved then. Thanks!

[Dai_trying]

A link only shows the size of the link by default, although you can pass a parameter to change this effect.
try this

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ls -laLh

It will not work for directories but I usually use ncdu to traverse the file structure with the sizes displayed, it does take a minute or so to load up with the information but is very handy sometimes.