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4 .\" This software was developed by Edward Tomasz Napierala under sponsorship
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35 .Nd determine filesystem type
45 utility is used to determine the filesystem type on a given device.
46 It can recognize ISO-9660, Ext2, FAT, NTFS, and UFS filesystems.
51 also recognizes certain additional metadata formats that cannot be
58 The filesystem name is printed to the standard output
60 .Bl -item -offset indent -compact
79 is built specifically to detect filesystem types, it differs from
82 The output is machine-parsable, filesystem labels are supported,
83 the utility runs sandboxed using
85 and does not try to recognize any file format other than filesystems.
87 These options are available:
88 .Bl -tag -width ".Fl l"
90 In addition to filesystem type, print filesystem label if available.
95 only works on regular files and disk-like device nodes.
96 Trying to read other file types might have unexpected consequences or hang
99 Include filesystems and devices that cannot be mounted directly by
105 utility exits 0 on success, and >0 if an error occurs or the filesystem
106 type is not recognized.
123 utility was developed by
124 .An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org
125 under sponsorship from the FreeBSD Foundation.
126 ZFS and GELI support was added by
127 .An Allan Jude Aq Mt allanjude@FreeBSD.org