UNIX for Dummies Questions & Answers

Say I have a text file (allWords.txt), that contains all the words in the dictionary, line by line, that I would like to search through. Here is a snippet of what it might looks like...

Code:
a aah aahed aahing aahs aardvark aardvarks aardwolf ab abaci aback abacus abacuses abaft ......

I would like to use the grep search to search, line by line, for all the words beginning with a certain letter and count how many times another letter occurs in that word.

Foe example: I want to search through all the words that begin with the letter "a" and count how many times the letter "e" occurs in that word.

Is that possible.

Thanks!

This is a simple example:

Code:

$ grep '^[a]' test | grep e -o | wc -l
1

Code:

$ grep '^[a]' test
a
aer

Code:

$ cat test
a
bat
cde
aer
zse