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Re: mv to a non-existent path now renames instead of failing
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From: |
Eric Blake |
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Subject: |
Re: mv to a non-existent path now renames instead of failing |
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Date: |
Thu, 17 Mar 2016 09:00:37 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 |
On 03/17/2016 08:49 AM, Eric Blake wrote:
>> Repeat-By:
>> rmdir two 2> /dev/null
>> mkdir one
>> mv one two/
>
> POSIX requires this to succeed, and renames 'one/' to 'two/'.
That said, if you WANT an error if 'two/' does not exist, and to move
'one' to 'two/one' if 'two/' does exist, you can always use:
mv one two/.
where the trailing '.' changes the semantics required of the rename()
call, and forces an error if 'two/' does not exist.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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