GNU bug report logs - #22128
dirname: accept file list input

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Message #14 received at 22128 <at> debbugs.gnu.org (full text, mbox):

From: "Nellis, Kenneth" <Kenneth.Nellis <at> xerox.com>
To: Bob Proulx <bob <at> proulx.com>, "22128 <at> debbugs.gnu.org"
 <22128 <at> debbugs.gnu.org>
Subject: RE: bug#22128: dirname enhancement
Date: Thu, 10 Dec 2015 16:49:24 +0000

Thanx. Hadn't yet discovered GNU find's -printf option.
Still, my -f suggestion would be easier to type,
but I welcome your alternatives.
-Ken

> -----Original Message-----
> From: Bob Proulx [mailto:bob <at> proulx.com]
> Sent: Thursday, December 10, 2015 11:34 AM
> To: Nellis, Kenneth; 22128 <at> debbugs.gnu.org
> Subject: Re: bug#22128: dirname enhancement
> 
> 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

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