System Administration Commands fstyp(1M)
NAME
fstyp - determine file system type
SYNOPSIS
fstyp [-a | -v] special [:logical-drive]
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 system identifier for that type (for example, ``ufs'') and exits with a return code of 0; if none of the modules succeed, the error messageunknown_fstyp (no matches) is returned and the exit status
is 1. If more than one module succeeds, the error messageunknown_fstyp (multiple matches) is returned and the exit
status is 2. Other errors are printed in the same format. This command is unreliable and its results should not be used to make any decisions about subsequent use of a storage device or disk partition. OPTIONS-a Output all available file system attributes. If a file
system has been successfully identified, and this option is specified, the FSType identifier is followedby one or more "name-value" pairs, one per line, in
the format: name: value The following conventions are recognized for the file system attributes: o String values are put in single quotes.o Nested "name-value" list increases the inden-
tation of its values by four whitespaces.o For an array of "name-value" pairs, one array
entry is printed per line, with the index following the name in square brackets.For instance, in the following example, "top_list" is
a "name-value" list, consisting of a string array
SunOS 5.11 Last change: 19 Dec 2007 1
System Administration Commands fstyp(1M)
"string_array" and a "name-value" list array
"list_array". The second "list_array"element is an
integer array "int_array" containing three elements.
top_string: 'String'
top_list:
string_array[0]: 'S0'
string_array[1]: 'S1'
list_array[0]:
int_one: 1
string_two: 'S2'
list_array[1]:
int_array[0]: 1
int_array[1]: 2
int_array[2]: 3
In addition to the FSType-specific attributes, the
following generic attributes may be present:gen_clean Allowable values are "true" or "false".
If the value is "false", the file system is damaged or was not unmounted cleanly and the fsck(1M) command must be run before this file system can be mounted.gen_guid Globally unique identifier. This string
uniquely identifies the file system.gen_version A string describing the file system
version.gen_volume_label Volume label, a human-readable
string used to either describe or identify the file system.-v Produce verbose output. This is usually information
about the file systems superblock and varies acrossdifferent FSTypes. See ufs(7FS), mkfs_ufs(1M), and
tunefs(1M) for details.USAGE
See largefile(5) for the description of the behavior offstyp when encountering files greater than or equal to 2
Gbyte ( 2^31 bytes).SunOS 5.11 Last change: 19 Dec 2007 2
System Administration Commands fstyp(1M)
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWcs ||_____________________________|_____________________________|
SEE ALSO
fsck(1M), mkfs_ufs(1M), tunefs(1M), attributes(5),
libfstyp(3LIB), largefile(5), hsfs(7FS), ufs(7FS), pcfs(7FS)
NOTESThe use of heuristics implies that the result offstyp is not
guaranteed to be accurate. This command is unreliable and its results should not be used to make any decisions about subsequent use of a storage device or disk partition.SunOS 5.11 Last change: 19 Dec 2007 3