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FSTYP(8) FreeBSD System Manager's Manual FSTYP(8) NAME fstyp -- determine filesystem type SYNOPSIS fstyp [-l] [-s] [-u] special DESCRIPTION The fstyp utility is used to determine the filesystem type on a given de- vice. It can recognize BeFS (BeOS), ISO-9660, exFAT, Ext2, FAT, NTFS, and UFS filesystems. When the -u flag is specified, fstyp also recog- nizes certain additional metadata formats that cannot be handled using mount(8), such as geli(8) providers, and ZFS pools. The filesystem name is printed to the standard output as, respectively: befs cd9660 exfat ext2fs geli hammer hammer2 msdosfs ntfs ufs zfs Because fstyp is built specifically to detect filesystem types, it dif- fers from file(1) in several ways. The output is machine-parsable, filesystem labels are supported, the utility runs sandboxed using capsicum(4), and does not try to recognize any file format other than filesystems. These options are available: -l In addition to filesystem type, print filesystem label if available. -s Ignore file type. By default, fstyp only works on regular files and disk-like device nodes. Trying to read other file types might have unexpected consequences or hang indefinitely. -u Include filesystems and devices that cannot be mounted directly by mount(8). EXIT STATUS The fstyp utility exits 0 on success, and >0 if an error occurs or the filesystem type is not recognized. SEE ALSO file(1), capsicum(4), autofs(5), geli(8), glabel(8), mount(8), zpool(8) HISTORY The fstyp command appeared in FreeBSD 10.2. AUTHORS The fstyp utility was developed by Edward Tomasz Napierala <trasz@FreeBSD.org> under sponsorship from the FreeBSD Foundation. ZFS and GELI support was added by Allan Jude <allanjude@FreeBSD.org>. FreeBSD 13.0 December 24, 2019 FreeBSD 13.0
NAME | SYNOPSIS | DESCRIPTION | EXIT STATUS | SEE ALSO | HISTORY | AUTHORS
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