Le texte original fait partie de la documentation des ``textutils'' GNU et est donc soumis à la licence suivante:
Copyright (C) 1994, 95, 96 Free Software Foundation, Inc. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions, except that this permission notice may be stated in a translation approved by the Foundation.
Pour résumer vous avez le droit de copier, redistribuer, modifier ou traduire librement ce texte tant que le résultat est placé sous la même licence.
Copyright (C) 1999, Christophe Deleuze pour la traduction.