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Re: [BUG] directory tree error (probably)
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From: |
Eric Blake |
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Subject: |
Re: [BUG] directory tree error (probably) |
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Date: |
Tue, 15 Oct 2013 20:47:10 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.0 |
On 10/15/2013 06:57 AM, Martin Brugnara wrote:
> It seams that "cd [/]{1,}" should take you to the root node. (as showed up
> by 'ls')
>
> But when we try with two "/" something goes wrong:
> ls works as to be in the root node,
> pwd report "//" as path instead of "/"
> the bash line report "//" as path too
Not a bug. POSIX requires that "//" be implementation-defined, and
permits implementations where it is a different directory than "/". At
least Cygwin behaves this way, using "//" as the root of the
"//system/share" path notation for accessing other computers on the same
network. While Linux happens to have an implementation definition that
"//" and "/" are identical, bash has chosen that it is easier to always
handle "//" specially than to try to determine whether a particular
system treats it as distinct or normalizes it.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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