perl stat windows 与 UNIX不同

在 windows perl 下运行如下程序：

sub stat
{
    my ($filename) = @_;
    my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size, $atime, $mtime, $ctime, $blksizes, $blocks) = stat($filename);
    print "filename is $filename:\n";
    print "Dev is $dev, Inode is $ino, Mode is $mode\n";
    print "nlink is $nlink, Uid is $uid, Gid is $gid\n";
    print "rdev is $rdev, Size is $size\n";
    print "atime is $atime, mtime is $mtime, ctime is $ctime\n";
    print "blkszies is $blksizes, blocks is $blocks\n";
}
sub get_stat
{
    foreach my $filename (@ARGV)
    {
        &stat($filename);
    }
}
&get_stat();
运行时输入：stat test.1 test.2 
结果得到的Dev 和inode 两个文件是相同的。而在UNIX环境下，这两者可以唯一确定一个文件！
google了一下发现， stat 函数在 windows 中某些值是得不到的(某些值为0)！
1.） UNIX值的描述：

0 	Device number of file system
1 	Inode number
2 	File mode (type and permissions)
3 	Number of (hard) links to the file
4 	Numeric user ID of file.s owner
5 	Numeric group ID of file.s owner
6 	The device identifier (special files only)
7 	File size, in bytes
8 	Last access time since the epoch
9 	Last modify time since the epoch
10 	Inode change time (not creation time!) since the epoch
11 	Preferred block size for file system I/O
12	Actual number of blocks allocated

window下值的描述

  
  
  
  

   
   
   
   

     Table 10.2: stat Return Valves 
   
   
   
   
   
 
    
 
     
Field
 
     
Description
 
    
 
   
   
   
   
   
 
    
 
     
dev
 
     
Device number (drive number)
 
    
 
    
 
     
ino
 
     
Inode number: 0 (zero) in Perl for Win32
 
    
 
    
 
     
mode
 
     
File permission mode: read/write/execute
 
    
 
    
 
     
nlink
 
     
Number of links to file (usually one for Win32 systems - NTFS filesystems may have a value greater than one)
 
    
 
    
 
     
uid
 
     
User ID - zero for Win32
 
    
 
    
 
     
gid
 
     
Group ID - zero for Win32
 
    
 
    
 
     
rdev
 
     
Device Identifier (drive number)
 
    
 
    
 
     
size
 
     
File size in bytes
 
    
 
    
 
     
atime
 
     
Last access time (C lang. time_t value)
 
    
 
    
 
     
mtime
 
     
Last modification time (C lang. time_t value)
 
    
 
    
 
     
ctime
 
     
File creation time (C lang. time_t value)
 
    
 
    
 
     
blksize
 
     
Disk block size (cluster size): zero for Win32
 
    
 
    
 
     
blocks
 
     
Number of blocks for file: zero for Win32