Re: Add --dereference option to df

[Bernhard Voelker]

On 12/04/2013 02:25 PM, Pádraig Brady wrote:
> Pushed.

Hi Padraig,

oops, there was another user-visible change with v8.21-172-g33660b4:

df now also works better with relative paths to the source
device, e.g.:

  $ cd /dev/ && df-8.21 sdb
  Filesystem     1K-blocks  Used Available Use% Mounted on
  devtmpfs         1014572    48   1014524   1% /dev

  $ cd /dev/ && df-new sdb
  Filesystem     1K-blocks    Used Available Use% Mounted on
  /dev/sdb        10190136 6039532   3609932  63% /home

This seems to be valid for POSIX compliance, but contradicts
our TEXI documentation.  I'd suggest something like this:

-     If an argument FILE is an absolute name of a disk device node
+     If an argument FILE resolves to a special file
   containing a mounted file system, `df' shows the space available on that
   file system rather than on the file system containing the device node.

And as this was a user-visible change, it should probably
be mentioned in the NEWS file.  WDYT?

Have a nice day,
Berny