On FreeBSD:
jot -r -c 160 a { | rs -g 0 8
It will output something like this:
whhmuqxn
amajtohu
ydtetwjw
ysnctfcl
svsiypsf
cvalnoex
dvoburbw
fedkcmfx
pikwqwiv
umaxmqcq
iqmtcnny
vsunccxj
owghvpgo
lndrpswr
flgtvyjz
vphojoqc
zofbcxto
reaixjhj
hmoeabtg
fukuimvk
//Vladimirr.dk