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How can I get the current disk usage (in %) of my hard drive from the command line?

Olivier Lalonde
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2 Answers2

209

ncdu

Works well from the command line. It's ncurses-based and interactive.
You can install it with sudo apt-get install ncdu.

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Alternatives

  • Top ten: du -shx * | sort -rh | head -10
  • If you want more fine grained disk usage, you should take a look at the answers here.
N0rbert
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Ehtesh Choudhury
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    Install this via sudo apt install ncdu – Peter T. May 17 '17 at 04:43
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    I liked the alternatives. You have to be in the directory you are looking for the large files. But I found it easy to spot the culprit this way without having to install anything. – G Trawo Sep 18 '18 at 14:49
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    du -shx * | sort -rh | head -10 is a lifesaver! Especially great if you are on a small test server, you have run out of space, and do not already have a fancy utility installed to fix your problems. – Michael Plautz Oct 04 '18 at 18:52
  • on CentOS sudo yum install ncdu – Marco C. Oct 16 '19 at 13:32
  • The Top ten item above is very helpful, however, it omits hidden directories. Is there an easy way to include them? – dvhirst Jan 05 '21 at 05:57
  • Oh my god I almost died here! While in this tool, be VERY CAREFUL not to think you're on the command line and do cd folder because D is DELETE and space will CONFIRM :O – Jerther Nov 03 '23 at 16:38
186

By using the df command.

Here's an example output:

$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1            303537496  27537816 260580948  10% /
none                    950788       252    950536   1% /dev
none                    959516       232    959284   1% /dev/shm
none                    959516       388    959128   1% /var/run
none                    959516         0    959516   0% /var/lock

Also take a look at its manpage.

htorque
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    df -m will show things in megabytes, df -h will show you in the largest possible unit. – Oli Jan 11 '11 at 15:48