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Message-ID: <94a0d4530909131442h43d0ed1cl9f395f7d38f2c43@mail.gmail.com> Date: Mon, 14 Sep 2009 00:42:04 +0300 From: Felipe Contreras <felipe.contreras@...il.com> To: Mike Frysinger <vapier.adi@...il.com> Cc: linux-kernel@...r.kernel.org, Sam Ravnborg <sam@...nborg.org> Subject: Re: [PATCH 2/5] kbuild: fix warning when domainname is not available On Mon, Sep 14, 2009 at 12:12 AM, Mike Frysinger <vapier.adi@...il.com> wrote: > On Sun, Sep 13, 2009 at 15:38, Felipe Contreras wrote: >> + if $domain; then > > is this really correct ? i think you meant to use: > [ -n "$domain" ] What is the difference? $domain unset test -n "" -> false test -> false $domain is a valid string test -n "string" -> true test "string" -> true The relevant rules are these: * An omitted EXPRESSION defaults to false * STRING equivalent to -n STRING -- Felipe Contreras -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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