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Date: Fri, 01 Jun 2012 07:00:21 -0600
From: Eric Blake <eblake AT redhat DOT com>
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Subject: Re: Shell script loop runs out of memory
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On 06/01/2012 03:20 AM, Adam Dinwoodie wrote:
> Buchbinder, Barry wrote:
>> You might try changing
>>     [[ condition ]]
>> to
>>     [ condition ]
>> Perhaps single brackets use memory differently than double brackets.
>=20
> They do: [[ condition ]] is interpreted by the shell; [ condition ] forks=
 to
> call /usr/bin/[.exe.

No, it doesn't.  Bash has a built-in [ rather than forking, since
running tests is so common.

--=20
Eric Blake   eblake AT redhat DOT com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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