When I use find --version with GNU find, I get something like this:find (GNU findutils) 4.5.9     [license text]Features enabled: D_TYPE O_NOFOLLOW(enabled) LEAF_OPTIMISATION FTS(FTS_CWDFD) CBO(level=2)What do these features mean? There's some reference to O_NOFOLLOW being a security measure in man find, and there's a mention of LEAF_OPTIMISATION being an optimization that saves a few lstat calls on leaf nodes. But I can't find anything about FTS, D_TYPE or CBO.
What do the features enabled in GNU find mean?
find;gnu