On Sun, Aug 24, 2025 at 05:58:21PM -0700, Collin Funk wrote:

> Thank you for offering to file one, but it isn't a bug.

Doh! I need to drink more coffee - of course I know that the first column is
the device name/filesystem, sigh :-(

> It is based on the file system type. The type of udev is devtmpfs. See
> the following output:
> 
>     $ df -T 2>/dev/null | grep -E '^(Filesystem|udev)'
>     Filesystem                Type     1K-blocks      Used Available Use% 
> Mounted on
>     udev                      devtmpfs   3807792         0   3807792   0% /dev
> 
> I think the command you want is:
> 
>    $ df -x devtmpfs 2>/dev/null | grep -E '^(Filesystem|udev)'
>    Filesystem                1K-blocks      Used Available Use% Mounted on
> 
> Collin

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