1.\" Copyright (c) 2014 The FreeBSD Foundation 2.\" All rights reserved. 3.\" 4.\" This software was developed by Edward Tomasz Napierala under sponsorship 5.\" from the FreeBSD Foundation. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" $FreeBSD$ 29.\" 30.Dd January 14, 2015 31.Dt FSTYP 8 32.Os 33.Sh NAME 34.Nm fstyp 35.Nd determine filesystem type 36.Sh SYNOPSIS 37.Nm 38.Op Fl l 39.Op Fl s 40.Ar special 41.Sh DESCRIPTION 42The 43.Nm 44utility is used to determine the filesystem type on a given device. 45It can recognize ISO-9660, Ext2, FAT, NTFS, and UFS filesystems. 46The filesystem name is printed to the standard output 47as, respectively, 48.Li cd9660 , 49.Li ext2fs , 50.Li msdosfs , 51.Li ntfs , 52or 53.Li ufs . 54.Pp 55Because 56.Nm 57is built specifically to detect filesystem types, it differs from 58.Xr file 1 59in several ways. 60The output is machine-parsable, filesystem labels are supported, 61the utility runs sandboxed using 62.Xr capsicum 4 , 63and does not try to recognize any file format other than filesystems. 64.Pp 65These options are available: 66.Bl -tag -width ".Fl l" 67.It Fl l 68In addition to filesystem type, print filesystem label if available. 69.It Fl s 70Ignore file type. 71By default, 72.Nm 73only works on regular files and disk-like device nodes. 74Trying to read other file types might have unexpected consequences or hang 75indefinitely. 76.El 77.Sh EXIT STATUS 78The 79.Nm 80utility exits 0 on success, and >0 if an error occurs or the filesystem 81type is not recognized. 82.Sh SEE ALSO 83.Xr file 1 , 84.Xr capsicum 4 , 85.Xr glabel 8 , 86.Xr mount 8 87.Sh HISTORY 88The 89.Nm 90command appeared in 91.Fx 11.0 . 92.Sh AUTHORS 93The 94.Nm 95utility was developed by 96.An Edward Tomasz Napierala Aq Mt trasz@FreeBSD.org 97under sponsorship from the FreeBSD Foundation. 98