Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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

share|improve this question
up vote 15 down vote accepted

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


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

        ss of ncdu


  • 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


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

share|improve this answer
very nice write up! =) – duckx Apr 27 '13 at 16:08
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. unix.stackexchange.com/a/151684/47538 – Ramesh Aug 22 '14 at 21:34
@Ramesh - sure, I hadn't heard of it before. – slm Aug 22 '14 at 21:42
Thanks, I thought the konqueror plugin is forever dead, but there you found it! – dhill Nov 27 '14 at 11:19

Try this for "diskfree":

df -h

The "-h" option makes the output "human-readable".

share|improve this answer

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
share|improve this answer

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.

share|improve this answer
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 0:19
But he asks"in centos and Ubuntu" but thanks for the hint I edited my answer – rubo77 Aug 23 '14 at 6:02
Sorry, didn't notice the Ubuntu mention in the body, only the title. – slm Aug 23 '14 at 6:08

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.