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Article #7412

Re: Duda tonta de un script

#7412
From: garlito
Date: Fri, 28 Feb 2003 00:45
18 lines
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Juli�n Albo escribi�:

> Santiago Romero escribi�:
 
>>  if [ "X${CONTADOR}Y" != "X${FIN}Y" ];
> 
> �Qu� falta hacen la X y la Y?
> 
> 	if [ "$CONTADOR" != "$FIN" ]
> 
> sirve perfectamente.

No si FIN no est� definida. Entonces el test devuelve 2, cuando el
comportamiento que se entender�a m�s natural es que una cadena no
definida sea equiparable a una cadena vac�a y por tanto devuelva 0.
El "parche" de Santiago hace que tenga ese comportamiento m�s natural

Saludos
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From: garlito <garlito@wanadoo.es>
Newsgroups: es.comp.os.linux.programacion
Subject: Re: Duda tonta de un script
Date: Fri, 28 Feb 2003 01:45:29 +0100
Organization: Ecolnet
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