How to xtract words from file in linux for Dictionary maker

Example - ditto is a dictionary file name

1. grep ".*xxx" ditto
//here .*xxx is given for word ends with xxx
//it will list all words ends with xxx pattern

2. grep ".*xxx" > newditto
//it will save output of Ist command to newditto file

3. grep -v ".*xxx" > newditto
//it will save those word not ends with xxx pattern to ditto file

4. wc -l // wc -w // wc -c
use it for count line word and character in file