Find one-handed words 'exaggerated' is an example of a word which can be typed on the left hand, on a normal qwerty keyboard map.  'monopoly' is an example for the right hand.  

Searching the unix words file for words that can be typed on one hand.  Output should be two lines:  space separated list of such words for the left hand, followed by the list for the right hand.  e.g.

a abaft abase abased abases abate abated abates abbess abbesses ...
h hi hill hilly him hip hippo hippy ho hokum ...


The left-hand letters are:

qwertasdfgzxcvb


The right-hand letters are:

yuiophjklnm'


Uppercase letters count as one-handed; letters with diacritics count as two-handed and hence words containing them can be ignored.
Bash (100 89 chars)

for x in a-gq-tvwxz h-puy\'
do grep -iE ^[$x]*$ /usr/share/dict/words|tr '
' \ 
echo
done


Note that 21 chars go to the full path to the words file: if we're allowed to assume that pwd is /usr/share/dict then 16 of those can be saved.

Credit to chron for the shorter regexes.