[R] create a folder with mode '0777'

[Prof Brian Ripley]

Please read the comments in the help about umask (and in the posting 
guide about the 'at a minimum' information required in postings, for 
the details do depend on the version of R and it seems yours is not 
current).

In R 2.13.0:

      ‘dir.create’ creates the last element of the path, unless
      ‘recursive = TRUE’.  Trailing path separators are discarded.  The
      mode will be modified by the ‘umask’ setting in the same way as
      for the system function ‘mkdir’.

so try

um <- Sys.umask(0)
dir.create('test/sub', recursive=TRUE)
Sys.umask(um)

(Whether mkdir -p respects umask depends on your OS ... and the 
command-line command and the system call of that name may differ.)

On Wed, 4 May 2011, Xian Zhang wrote:

> Dear list,
>
> I am trying to create a folder structure, say 'test/sub', and set the
> folder and sub folder to be writable to everyone.
>
> By default
>
> dir.create('test/sub', recursive=TRUE, mode='0777')
>
> creates folders with mode: drwxr-xr-x
>
> After
>
> Sys.chmod('test/sub',mode='0777')
>
> The folder 'test' is: drwxr-xr-x
> and the sub folder 'sub' is: drwxrwxrwx
>
> The question is how to generate a folder and sub folders, with every
> folder being drwxrwxrwx ?
>
> I am using a linux/redhat system.
>
> Thank you for your help.
> Xian
>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595