How to find files taking up disk space in Linux : <p>I'm trying to find the largest files on my 25GB Linux server which has been steadily running out of space and is now 99.5% full. I assumed it was log files since I wasn't doing anything with the sites, and the database sizes are small and static.</p>

<p>Log files were a 100MB or so, nothing major.</p>

<p>I've tried the command found here (<a href="https://www.cyberciti.biz/faq/linux-find-largest-file-in-directory-recursively-using-find-du/" rel="nofollow noreferrer">https://www.cyberciti.biz/faq/linux-find-largest-file-in-directory-recursively-using-find-du/</a>) to recursively find the biggest files but its not giving me anything useful:</p>

<pre><code>root@127:~# du -a / | sort -n -r | head -n 20
du: cannot access '/proc/12377/task/12377/fd/4': No such file or directory
du: cannot access '/proc/12377/task/12377/fdinfo/4': No such file or directory
du: cannot access '/proc/12377/fd/3': No such file or directory
du: cannot access '/proc/12377/fdinfo/3': No such file or directory
sort: write failed: /tmp/sortnI7YzR: No space left on device
</code></pre>

<p>I'm a Linux novice so would appreciate any help. </p>
