file_stat is basically "ls" for programmers. Every item in "struct stat" gets displayed. Here's a sample:
% file_stat ~ /home/jef: st_dev 168704 st_ino 316974 st_mode 00000040755 drwxr-xr-x st_nlink 60 st_uid 1544 st_gid 1002 st_rdev 2657440 st_atime 1108068958 10Feb2005 12:55:58 st_mtime 1108068755 10Feb2005 12:52:35 st_ctime 1108068755 10Feb2005 12:52:35 st_size 2560 st_blocks 8 st_blksize 4096 st_flags 0x00000000 st_gen 0
See the manual entry for more details.