Re: sed : à l'aide

[peterpan31 <peterpan31 AT free.fr>]

Oui, le slash aurait été moins problématique.


Le 08/09/2023 à 22:58, Pascal Hambourg (via linux-31 Mailing List) a écrit :
> Sujet :
> Re: sed : à l'aide
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> "Pascal Hambourg" (via linux-31 Mailing List) <linux-31 AT culte.org>
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> Le 08/09/2023 à 22:33, peterpan31 (via linux-31 Mailing List) a écrit :
> > Je fais ceci et ça roule :
> >
> > sed -i.bak "s!^\(DefaultVolume \+\)[0-9]\+\$!\1${Volume}!" "$CONF"
>
> Vraiment ? Tu as de la chance car cette expression illisible est un 
> piège à con, elle ne fonctionne pas en shell bash interactif car ! est 
> interprété comme rappel de commande de l'historique.
>
> Pourquoi ne pas plutôt utiliser une commande plus sûre et plus lisible 
> comme celle-ci ? $Volume peut contenir des / ?
>
> sed -E -i.bak "s/^(DefaultVolume +)[0-9]+$/\1${Volume}/" "$CONF"
> --