I would like to count of each unique letter in a string by using c#.net
<p>I would like to write a problem to read a text file from command line and to output the count of each unique letter, sorted alphabetically. Any suggestions for this program in C#
Example :</p>

<p>Stack overflows</p>

<p>Output :</p>

<p>a 1
c 1
k 1
t 1
s 2</p>
