I have recently dual booted my pc with ubuntu and windows and total space available for lonux was 39GB . It worked fine for 4-5 days but suddenly showing low dsk space with only 2.1GB left even without installing anything. I have tried cleaning up cache ,old kernels and ended up in freeing only 0.6 GB space. How to clean up this remaining space?

  • 2
    Does this, help? – Mitch Jun 23 '20 at 5:33
  • You haven't said if you're talking about server? desktop? or provided release details... – guiverc Jun 23 '20 at 5:35
  • For what it's worth, on my "average" desktop, my /usr and /var combined is about 15 GB, so maybe using up 35 GB is odd. I also have a swapfile at /swapfile (swap partition if you're using an older version of Ubuntu) that is 2 GB. How big is your swapfile? If you don't have a program that is taking up disk space over time (i.e., ncdu should help find that), you might be fine to ignore the warning. – Ray Jun 23 '20 at 6:47

U can use ncdu to find out which folders/files are biggest

sudo apt-get install ncdu

sudo ncdu

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