[bug #56855] find -printf %h gives an empty string for the root directory '/'

[Tavian Barnes]

URL:
  <https://savannah.gnu.org/bugs/?56855>

                 Summary: find -printf %h gives an empty string for the root
directory '/'
                 Project: findutils
            Submitted by: tavianator
            Submitted on: Tue 03 Sep 2019 03:56:18 PM UTC
                Category: find
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.7.0
           Fixed Release: None

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Details:

This is just https://savannah.gnu.org/bugs/?50259#comment13, but I thought it
deserved its own report.

https://git.savannah.gnu.org/cgit/findutils.git/commit/?id=855dbdadbf75ca1f08f3e1c7c6811670e952d906
even documents that %h should give the dirname of the path, but:


$ find / /tmp -maxdepth 0 -printf '[%h]\n'
[]
[]
$ dirname /
/
$ dirname /tmp
/


%h giving the empty string can be a problem if you are using -printf to output
paths for processing by some other command, for example.




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