> that all that p*****b traffic
$ egrep -i "^p.*b$" /var/lib/dict/words
paystub
Pb
PBB
PCB
pedicab
perturb
pleb
plumb
Polab
potherb
prefab
Presb
preverb
prob
proverb
pseudobulb
pub
Punjab
$ egrep -i "^p.....b$" /var/lib/dict/words
paystub
pedicab
perturb
potherb
preverb
proverb
???