#Tip9: Compose Repeatable Change
Goal: delete the word nigh
##Delete Backward
##db
delete from the cursor's starting position to the beginning of the word, but it leaves the final h intact.
comment: dot repeats the single character deletion(.==x)
##Delete Forward
##b
put the cursor into position of the starting of the word.
##dw
delete from the cursor position to the begining of the next word.
comment: dot isn't useful cause cursor is already at end of the line(no next word). at least:.==dw
##Delete an Entire Word
##daw
delete the current word and also delete a whitespace character.
comment: dot repeats the instruction to delete a word..==daw