Field Description st_gid Numeric identifier of group that owns the file (UNIX-specific) This field will always be zero on Windows systems. A redirected file is classified as a Windows file. st_atime Time of last access of file. Valid on NTFS but not on FAT formatted disk drives. st_ctime Time of creation of file. Valid on NTFS but not on FAT formatted disk drives. st_dev Drive number of the disk containing the file (same as st_rdev). st_ino Number of the information node (the inode) for the file (UNIX-specific). On UNIX file systems, the inode describes the file date and time stamps, permissions, and content. When files are hard-linked to one another, they share the same inode. The inode, and therefore st_ino, has no meaning in the FAT, HPFS, or NTFS file systems. st_mode Bit mask for file-mode information. The _S_IFDIR bit is set if path specifies a directory; the _S_IFREG bit is set if path specifies an ordinary file or a device. User read/write bits are set according to the file's permission mode; user execute bits are set according to the filename extension. st_mtime Time of last modification of file. st_nlink Always 1 on non-NTFS file systems. st_rdev Drive number of the disk containing the file (same as st_dev). st_size Size of the file in bytes; a 64-bit integer for variations with the i64 suffix. st_uid Numeric identifier of user who owns file (UNIX-specific). This field will always be zero on Windows systems. A redirected file is classified as a Windows file.