How to find free disk space and analyze disk usage?

Question

In CentOS and Ubuntu, how do I find out how much free disk space I have left and other disk stats like disk usage?

score 63 · Accepted Answer · edited Jan 08 '18 at 14:44

63

Type the following command:

df -h

df: disk free
-h: makes the output human-readable

edited Jan 08 '18 at 14:44

Can Sürmeli

249

answered Apr 26 '13 at 19:07

static

898

best answer without the need to install additional software! – Patoshi パトシ Feb 26 '19 at 19:19
df stands for disk filesystem – Typo Jan 31 '20 at 20:42

score 31 · Answer 2 · answered Apr 26 '13 at 22:23

31

I covered this pretty extensively in a blog post titled: Command Line Tools for Analyzing Disk Usage on Fedora/CentOS/RHEL.

ncdu

It’s ncurses based, feature rich and has a nice clean interface and it works from within a shell.

ss of ncdu

gt5

display diskspace used by files & directories within a directory
display what’s happened since the last ran (see screenshots below)
optionally provides links to the files, so you can also browse them
displays entries with their size & the percentage of their parent
ommits small files/directories
easy browsing using the cursor-keys
produces html files for browsing ‘offline’ afterwards

ss of gt5

Disk Usage Analyzer (aka. Baobab)

Single folder scan
Remote scan
Monitoring of Home
Display Data in Treemaps or as Ringschart

ss of baobab

others...

In particular fsview is a very nice GUI. I like how it organizes the disk usage visually. It’s actually a KDE application (a plugin to Konqueror) but runs just fine under GNOME. It’s typically part of a package called kdeaddons, and shows up in the Applications menu as “File System Viewer” under Accessories.

ss of fsview

answered Apr 26 '13 at 22:23

slm

369,824

Thanks, if anyone comes across additional tools please feel free to drop me a note, I'm always interested in finding other tools in this space! – slm Apr 27 '13 at 16:44
@slm, may be you can add cdu as well over here. I have mentioned it in the other question's answer. http://unix.stackexchange.com/a/151684/47538 – Ramesh Aug 22 '14 at 21:34
1

Thanks, I thought the konqueror plugin is forever dead, but there you found it! – dhill Nov 27 '14 at 11:19
@slm blog link is broken – Alexander Malakhov Feb 15 '16 at 07:43
k4dirstat is my preference, thx on the other options! – Aquarius Power Jul 17 '17 at 21:34
@slm is the link to your blog post dead ? – Poutrathor Jan 17 '19 at 10:30

score 8 · Answer 3 · answered Apr 26 '13 at 20:50

There are a few commands you can use like df, du, and a few more. Just man a few commands to find out how to use them. If you still have a problem finding what you need after that just go to any directory and do this:

sudo du --max-depth=1 | sort -nr

You'll get something like:

2318764 ./usr
777036  ./var
328316  ./lib
222620  ./etc
86136   ./boot

rubo77 · Answer 4 · 2014-08-23T06:05:01.553

5

In Ubuntu dfc shows a coloured output of your mounted devices and is available via apt:

sudo apt-get install dfc

output like this: enter image description here

Unfortunately this is not available for CentOS as an rpm.

edited Aug 23 '14 at 06:05

answered Aug 22 '14 at 23:10

rubo77

28,966

this Q is asking about CentOS options, dfc is not in any RH repos for either CentOS or Fedora. I already checked this earlier today when I saw your Q showing it 8-). If you google for "dfc rpm" you'll see that no hits show up too. It's just not a popular app on either of these distros, hence my extensive list in my A. – slm Aug 23 '14 at 00:19
But he asks"in centos and Ubuntu" but thanks for the hint I edited my answer – rubo77 Aug 23 '14 at 06:02
Sorry, didn't notice the Ubuntu mention in the body, only the title. – slm Aug 23 '14 at 06:08

How to find free disk space and analyze disk usage?

4 Answers4

ncdu

gt5

Disk Usage Analyzer (aka. Baobab)

others...

Linked

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