fstyp(8) [freebsd man page]

FSTYP(8)						    BSD System Manager's Manual 						  FSTYP(8)

NAME

     fstyp -- determine filesystem type

SYNOPSIS

     fstyp [-l] [-s] special

DESCRIPTION

     The fstyp utility is used to determine the filesystem type on a given device.  It can recognize ISO-9660, Ext2, FAT, NTFS, and UFS filesys-
     tems.  The filesystem name is printed to the standard output as, respectively, cd9660, ext2fs, msdosfs, ntfs, or ufs.

     Because fstyp is built specifically to detect filesystem types, it differs 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.

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), glabel(8), mount(8)

HISTORY

     The fstyp command appeared in FreeBSD 11.0.

AUTHORS

     The fstyp utility was developed by Edward Tomasz Napierala <trasz@FreeBSD.org> under sponsorship from the FreeBSD Foundation.

BSD
								 January 14, 2015							       BSD

fstyp(1M)						  System Administration Commands						 fstyp(1M)

NAME

       fstyp - determine file system type

SYNOPSIS

       fstyp [-v] special

DESCRIPTION

       fstyp allows the user to determine the file system type of  unmounted file systems using heuristic programs.

       An   fstyp module for each file system type to be checked is executed;  each of these modules applies an appropriate heuristic to determine
       whether the supplied  special file is of the type for which it checks. If it is, the program prints on standard output the usual file  sys-
       tem  identifier	for that type (for example, ``ufs'') and exits with a return code of  0; if none of the modules succeed, the error message
       unknown_fstyp (no matches) is returned and the exit status is  1. If more than one module succeeds, the error message unknown_fstyp (multi-
       ple matches) is returned and the exit status is	2.

OPTIONS

       -v	Produce  verbose  output.  This  is usually information about the file systems superblock and varies across different FSTypes. See
		ufs(7FS), mkfs_ufs(1M), and  tunefs(1M) for details.

USAGE

       See largefile(5) for the description of the behavior of fstyp when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mkfs_ufs(1M), tunefs(1M), attributes(5), largefile(5),  hsfs(7FS), ufs(7FS), pcfs(7FS)

NOTES

       The use of heuristics implies that the result of  fstyp is not guaranteed to be accurate.

SunOS 5.10							    15 Apr 2003 							 fstyp(1M)