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 message
unknownfstyp (no matches) is returned and the exit status
is 1. If more than one module succeeds, the error message
unknownfstyp (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 followed
by 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, "toplist" is
a "name-value" list, consisting of a string array
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System Administration Commands fstyp(1M)
"stringarray" and a "name-value" list array
"listarray". The second "listarray"element is an
integer array "intarray" containing three elements.
topstring: 'String'
toplist:
stringarray[0]: 'S0'
stringarray[1]: 'S1'
listarray[0]:
intone: 1
stringtwo: 'S2'
listarray[1]:
intarray[0]: 1
intarray[1]: 2
intarray[2]: 3
In addition to the FSType-specific attributes, the
following generic attributes may be present:
genclean 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.
genguid Globally unique identifier. This string
uniquely identifies the file system.
genversion A string describing the file system
version.
genvolumelabel 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 across
different FSTypes. See ufs(7FS), mkfsufs(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).
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System Administration Commands fstyp(1M)
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWcsu
SEE ALSO
fsck(1M), mkfsufs(1M), tunefs(1M), attributes(5),
libfstyp(3LIB), largefile(5), hsfs(7FS), ufs(7FS), pcfs(7FS)
NOTES
The 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
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