Finding intersection between two text files in windows cmd

Question

Is there any command on windows to find intersection between two text files?

Example:

File1.txt    File2.txt    
Apple        Pie    
Banana       Apple    
Pie

Output:

Pie    
Apple

Answer 1

findstr /i /L /x /g:"File1.txt" "file2.txt"

should accomplish that quite nicely.

It finds all strings in file2 that /x exactly match /L literally /i but ignoring case /g:file strings in this file.