1 .\" Copyright (c) 2016 The DragonFly Project
2 .\" Copyright (c) 2014 The FreeBSD Foundation
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5 .\" This software was developed by Edward Tomasz Napierala under sponsorship
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36 .Nd determine filesystem type
46 utility is used to determine the filesystem type on a given device.
47 It can recognize BeFS (BeOS), ISO-9660, exFAT, Ext2, FAT, NTFS, UFS, HAMMER, and HAMMER2 filesystems.
52 also recognizes certain additional metadata formats that cannot be
56 The filesystem name is printed to the standard output
58 .Bl -item -offset indent -compact
79 Note that HAMMER filesystem consists of more than one volumes requires a path in blkdevs format.
84 doesn't recognize partially specified block devices as HAMMER filesystem volumes unless
90 is built specifically to detect filesystem types, it differs from
93 The output is machine-parsable, filesystem labels are supported,
94 and does not try to recognize any file format other than filesystems.
96 These options are available:
97 .Bl -tag -width ".Fl l"
99 In addition to filesystem type, print filesystem label if available.
104 only works on regular files and disk-like device nodes.
105 Trying to read other file types might have unexpected consequences or hang
108 Include filesystems and devices that cannot be mounted directly by
114 utility exits 0 on success, and >0 if an error occurs or the filesystem
115 type is not recognized.
135 utility was developed by
136 .An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
137 under sponsorship from the FreeBSD Foundation.
138 ZFS and GELI support was added by
139 .An Allan Jude Aq Mt allanjude@FreeBSD.org .
143 utility was ported to
146 .An Tomohiro Kusumi Aq Mt tkusumi@netbsd.org .
147 Donated to DragonFlyBSD by PeerCorps Trust Fund.
153 currently doesn't support
157 providers supported on