Hi

Anyone can explain me this result:
$ cat x
d
a b
$ cat y
a b
$ join -11 -21  x y
$

join reports nothing. The man page tells some magic about the need of 
sort if -t is not used, but using -t gives the same result:

$ cat x
d
a:b
$ cat y
a:b
$ join -t: -11 -21  x y
$

-- 
Emmanuel Dreyfus
manu@netbsd.org