pas de gain avec NULLCMD?

Vincent Lefevre vincent at vinc17.org
Fri Jan 6 16:56:58 CET 2006


On 2006-01-06 16:22:19 +0100, Bruno Bonfils wrote:
> On ven 06 janvier, Vincent Lefevre wrote:
> > > une commande externe est lancée dans les 2 cas ( $READNULL pour le
> > > premier cas ), la premiere syntaxe ne présente donc aucun interet.
> > 
> > Pas avec zsh (d'après la doc).
> 
> hmm, source ? 

man zshexpn

COMMAND SUBSTITUTION
    A  command  enclosed  in parentheses preceded by a dollar sign,
    like `$(...)', or quoted with grave accents, like  ``...`',  is
    replaced  with  its standard output, with any trailing newlines
    deleted.  If the substitution is not enclosed in double quotes,
    the  output  is broken into words using the IFS parameter.  The
    substitution `$(cat foo)' may be replaced by the equivalent but
    faster  `$(<foo)'.  In either case, if the option GLOB_SUBST is
    set, the output is eligible for filename generation.

-- 
Vincent Lefèvre <vincent at vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / SPACES project at LORIA



More information about the Shell mailing list