What are all those other things in the cmd/xfs directory?
Some of them are other interesting tools like: db – xfs_db is a xfs filesystem debugger (working) , copy – xfs_copy is tool for effectively copying one filesystem to another device (not yet ported, volunteer wanted), fsr – xfs_fsr is a defragmenter for xfs (working), repair – xfs_repair is the consistency checker for an xfs filesystem (working). As already mentioned earlier: the cmd structure has changed a bit at the beginning of 2001 – now it all looks a bit clearer i think (modeled a bit after the ext2 tools structure). The only other subdir is: xfstests – the SGI XFS stress test suite.