bug#22128: dirname enhancement

[Bob Proulx]

Pádraig Brady wrote:
> Nellis, Kenneth wrote:
> > E.g., to get a list of directories that contain a specific file: 
> > 
> > find -name "xyz.dat" | dirname -f -
> 
> find -name "xyz.dat" -print0 | xargs -r0 dirname

Also if using GNU find can use GNU find's -printf operand and %h to
print the directory of the matching item.  Not portable to non-gnu
systems.

  find . -name xyz.dat -printf "%h\n"

Can generate null terminated string output for further xargs -0 use.

  find . -name xyz.dat -printf "%h\0" | xargs -0 ...otherstuff...

Bob