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3 .\" This code is derived from software contributed to The DragonFly Project
4 .\" by Matthew Dillon <dillon@backplane.com>
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33 .\" $DragonFly: src/sbin/hammer/hammer.8,v 1.2 2008/01/17 04:59:48 dillon Exp $
39 .Nd HAMMER file system utility
43 .Op Fl f Ar blkdev[:blkdev]*
49 utility provides miscellanious functions related to managing a HAMMER
52 The options are as follows:
53 .Bl -tag -width indent
57 Specify recursion for those commands which support it.
58 .It Fl f Ar blkdev[:blkdev]*
59 Specify the volumes making up a HAMMER filesystem.
62 The commands are as follows:
63 .Bl -tag -width indent
65 Generate a timestamp suitable for use in the @@ filename extension,
66 representing right now.
68 Generate a timestamp suitable for use in the @@ filename extension.
69 A time specification of
70 .Pf yyyymmdd Oo :hhmmss Oc Ns Op .fractional
71 specifies an exact as-of timestamp in local (not UTC) time.
72 Set the TZ environment variable prior to running
74 if you wish to specify the time by some other means.
75 .It Ar show Op vol_no[:clu_no]
76 Dump the B-Tree starting at the specified volume and cluster, or
77 at the root volume if not specified.
78 The B-Tree is dumped recursively if the
84 Exit status is 0 on success and 1 on error.
90 utility first appeared in
93 .An Matthew Dillon Aq dillon@backplane.com