[R] Issues with file.info?

[Duncan Murdoch]

On 7/13/2009 10:42 AM, Jason Rupert wrote:
> Yes.  You are right that is the trick:)
> 
> Here is what I'm seeing:
> input_path<-c("C:/WINDOWS/system32")
> file.info(list.files(input_path))
> 
> 
>             size isdir mode mtime ctime atime  exe
> $winnt$.inf   NA    NA <NA>  <NA>  <NA>  <NA> <NA>
> 1025   NA    NA <NA>  <NA>  <NA>  <NA> <NA>
> ...
> xsi.jar  NA NA <NA>  <NA> <NA> <NA> <NA>
> xsi.zip  NA NA <NA>  <NA> <NA> <NA> <NA>
> zipfldr.dll NA NA <NA> <NA> <NA> <NA> <NA>
> 
> input_path<-c("C:/WINDOWS/system32/winmine.exe")
> file.info(input_path)
> 
>                                   size isdir mode               mtime               ctime               atime   exe
> C:/WINDOWS/system32/winmine.exe 119808 FALSE  777 2002-12-31 07:00:00 2008-08-15 14:28:37 2009-07-13 09:39:32 win32
> 
> Not sure why, file.info is not working for the array of input files/folders/etc. but successfully works when an individual file in input.  

Look at what list.files() returns:  there is no path, just the filename. 
  If you want to use file.info, you need the full path, so you'd use

file.info(list.files(input_path,full=TRUE))

(That takes a long time, by the way:  there are a lot of files there, 
and they all need to be opened for inspection!)

Duncan Murdoch
> 
> Thanks again for your insights and feedback. 
> 
> 
> 
> --- On Thu, 7/9/09, Rolf Turner <r.turner at auckland.ac.nz> wrote:
> 
>> From: Rolf Turner <r.turner at auckland.ac.nz>
>> Subject: Re: [R] Issues with file.info?
>> To: "Jason Rupert" <jasonkrupert at yahoo.com>
>> Cc: "R-help at r-project.org" <R-help at r-project.org>
>> Date: Thursday, July 9, 2009, 3:13 PM
>> 
>> On 10/07/2009, at 6:02 AM, Jason Rupert wrote:
>> 
>> > 
>> > Are there any tricks associated with file.info?
>> > 
>> > I just tried it on a directory folder and it returned
>> NA for all fields for all files.  I tried it on a
>> different folder with different files and it still returned
>> NA.
>> > 
>> > I tried it on a specific file and it returned all the
>> proper info correctly.
>> > 
>> > Just wondering if there are any tricks I've
>> overlooked.
>> 
>> Yes.  You've overlooked the trick of telling us about
>> the specifics of
>> your operating system, version of R, etc., and of showing
>> exactly what
>> commands you ``tried'', i.e. of reading the Posting Guide.
>> 
>>     cheers,
>> 
>>         Rolf Turner
>> 
>> 
>> 
>> ######################################################################
>> Attention:This e-mail message is privileged and
>> confidential. If you are not theintended recipient please
>> delete the message and notify the sender.Any views or
>> opinions presented are solely those of the author.
>> 
>> This e-mail has been scanned and cleared by
>> MailMarshalwww.marshalsoftware.com
>> ######################################################################
>> 
> 
> 
> 
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.