Messages in this thread | | | Date | Mon, 14 Sep 2009 00:42:04 +0300 | Subject | Re: [PATCH 2/5] kbuild: fix warning when domainname is not available | From | Felipe Contreras <> |
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On Mon, Sep 14, 2009 at 12:12 AM, Mike Frysinger <vapier.adi@gmail.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@vger.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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