How to get file owner name?

Is there a perl script to add own开发者_运维问答er's/authors name of the file?

my $owner = getpwuid((stat($file))[4]);

see stat and getpwuid for more detail.

Update: for Windows,

from this post: http://www.perlmonks.org/?node_id=865219

use Win32::OLE;
  my $objShell = Win32::OLE->CreateObject("Shell.Application");
  my $objFolder=$objShell->Namespace("c:\\a") or die "$!" ;
  my $a = $objFolder->ParseName("a.txt")  or die "$!" ;
  print $objFolder->GetDetailsOf($a, 8) or die "$!" ;

or,

 use Win32::Perms;
 my $username = Win32::Perms->new($filename)->Owner;

#!/usr/bin/perl -w

my @sb = stat "/etc/passwd";
my $userid = $sb[4];
my @pwent = getpwuid $userid;
my $username = $pwent[0];

print "/etc/passwd is owned by $username\n";


$ /tmp/foo.pl 
/etc/passwd is owned by root

The perldoc perlfunc guide has lots of information on these families of functions.