fstyp(1M) System Administration Commands fstyp(1M)NAMEfstyp - determine file system type
SYNOPSISfstyp [-v] special
DESCRIPTIONfstyp 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
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.
This command is unreliable and its results should not be used to make
any decisions about subsequent use of a storage device or disk parti‐
tion.
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 ALSOmkfs_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 guaran‐
teed 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 parti‐
tion.
SunOS 5.10 19 Dec 2007 fstyp(1M)
