istat(1) on Linux
The text 25564f9b7ce5, as Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Display details of a meta-data structure (i.e. inode)
Flags it lists
-
-B -
-V -
-b -
-f -
-i -
-o -
-s -
-v -
-z