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Re: grep = * vs grep = * > foo


Thanks, cgf, That makes sense.

But one more comment

"grep = *.* > delme" from the XP prompt does NOT
create the infinite loop.  It acts like the bash
shell.

-Sheryl


--- Christopher Faylor <cgf@redhat.com> wrote:
> On Tue, Oct 08, 2002 at 05:23:05PM -0700, Sheryl
> McKeown wrote:
> >grepping and redircting the output to a file
> >causes a process loop that has to be killed
> >
> >17:17 0  [C:\Development\test]
> >.grep = * > delme
> >
> >17:18 66048  [C:\Development\test]
> >.^C
> >
> >What happens is that the grep starts reading the
> delme
> >file and then reporting all those finds...
> 
> Right.  The file is created before grep is started
> so when grep expands
> the '*' if finds delme and dutifully searches it... 
> forever.
> 
> >Ok, but the odd part this is, this behavior doesn't
> appear when using
> >the bash shell (on the same XP box).
> 
> When run from the bash shell, bash itself first
> expands '*' and then
> creates delme.  Since delme doesn't exist, it isn't
> searched.
> 
> cgf
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