recover - recover files that have been removed.
recover file ...
rm x; recover x # Unremove x
recover a b c # Recover three files
MINIX allows files that have been deleted (e.g., with rm) to be restored
(in /tmp). The trick is that when a file is unlinked, its i-node number
is kept in the directory entry. As long as the directory entry and disk
blocks are not reused, the file can be recovered. This program is
actually just a little front end for de, which must be installed as a
set-uid root executable.