SYNOPSIS

       testfilelock fn

DESCRIPTION

       testfilelock  attempts  to  obtain  a lock on fn.  fn must
exist and be
       writable for testfilelock.

       If  testfilelock can obtain the lock, it immediately exits
100.   Other-
       wise it immediately exits 0.  On temporary errors it exits
111.

SEE ALSO

       flock(2), lockf(3)



                                                               test-
filelock(1)