Re: df and du don't seem to agree ?

[David Cho-Lerat <david.lerat@asterion.fr>]

> I will also mention the GNU faq entry for it.  Perhaps then it will
> rank higher in the search engine space.  :-)
>
>    http://www.gnu.org/software/coreutils/faq/#df-and-du-report-different-information
>
>    
thanks, I will send this link to the sysadmin.
> When I want to free up disk space used in a log file instead of
> removing the file, which creates the above situation of large files
> that no longer have a directory entry, instead of removing the file I
> truncate it.
>
>    $ :>  somelargefile
>
> By truncating the file it is immediately reduced and the disk blocks
> freed.  The file isn't removed and therefore won't be lost from the
> filesystem where du can't find it anymore.  Any daemon that is still
> writing to the file will still keep its file handle to it and will
> continue to write to the file.
>
> Bob
>    

nice trick, they probably should have done that instead ;) Will keep
that in mind.

Thanks,
David.