FSTYP(1M)           RISC/os Reference Manual            FSTYP(1M)



NAME
     fstyp - determine file system identifier

SYNOPSIS
     fstyp special

DESCRIPTION
     fstyp allows the user to determine the file system identif-
     ier of mounted or unmounted file systems using heuristic
     programs. The file system type is required by mount(2) and
     sometimes by mount(1M) to mount file systems of different
     types.

     The directory /etc/fstyp.d contains a program for each file
     system type to be checked; each of these programs applies
     some 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 and exits with a return code of 0;
     otherwise it prints error messages on standard error and
     exits with a non-zero return code. fstyp runs the programs
     in /etc/fstyp.d in alphabetical order, passing special as an
     argument; if any program succeeds, its file-system type
     identifier is printed and fstyp exits immediately. If no
     program succeeds, fstyp prints "Unknown_fstyp" to indicate
     failure.

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

SEE ALSO
     mount(1M).
     mount(2), sysfs(2) in the Programmer's Reference Manual.





















                        Printed 11/19/92                   Page 1