How to find files that are eating up disk space

Cliff Addy cliff at
Wed Dec 17 17:48:56 UTC 2008

Uh, that should be "du" not df :)


Use "df" to report disk usage.  Sitting in /, for example, "df -sm bin"
will tell you the disk usage in megs in the bin directory, "df -sm *"
will do the same for each file/dir in /

"man df" for the whole story


John Almberg wrote:
> Here is another newbie question that is driving me crazy, but is
> probably a laughable situation to an experienced admin...
> I've got a smallish server that is suddenly out of disk space in the
> '/' partition.
> Probably some log files have gotten out of hand. I am going to start
> looking for the culprits by hand... basically inspecting sub
> directories, but there must be a better way!
> Is there a command line tool that will help me figure out where the
> problem is?
> Even better, is there a way to proactively monitor the file system, so
> I can fix problems before I start getting 'out of disk space' errors?
> Any hints, much appreciated.
> -- John
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