By combining a few tools available on most UNIX or Unix like operating systems (tested on Solaris, Linux and Mac OS X), you can generate random passwords quickly.
cooper:~ scotbuff$ cat /dev/urandom | strings -n 8 | head -5
(WLw+T[)*Z|
L5Ru}TRj
CvOhRKaW
_Dc`3[2]
`X0q%Jcuz