Re: git-bisect: weird usage of read(1)

On Mon, Aug 11, 2008 at 07:01:15PM +0200, René Scharfe wrote:

Petr Baudis schrieb:

quoted

On Mon, Aug 11, 2008 at 04:59:32PM +0100, Reece Dunn wrote:

quoted

quoted

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On Mon, 11 Aug 2008, Francis Moreau wrote:

quoted

              case "$(read yesno)" in [Nn]*) exit 1 ;; esac

does not work as expected. Replacing this with

               case "$(read yesno; echo $yesno)" in [Nn]*) exit 1 ;; esac

would work as intended, as Mikael has pointed out.

  Wouldn't it be more elegant to

	case "$(head -n 1)" in [Nn]*) exit 1 ;; esac

Only if head is a built-in, otherwise you fork needlessly.  Not that
this is a performance critical part, but I wouldn't call it "elegant".

Ok, exec head -n 1. ;) And yes, I know... I guess I've just spent too
much time perl-golfing lately.

What's wrong with the following variant, already used a few lines up in
the file?

	read yesno
	case "$yesno" in [Nn]*) exit 1 ;; esac

Nothing wrong with this one, of course.

-- 
				Petr "Pasky" Baudis
The next generation of interesting software will be done
on the Macintosh, not the IBM PC.  -- Bill Gates