Thank you so much for your reply.
I will be using this quite a bit from now on.
Just use the regular diff command on these two files, eg:
> How should I compose the diff such that Codestriker will recognize and
> display a diff between "a" and "b" just like it does normally?
diff a.txt b.txt > output.txt
You can then load output.txt as your review topic.
diff a1.txt b1.txt > output1.txt
> Secondly how should I concatenate the output of several of such paired diffs
> such that Codestriker will display each filename and the associated
> differences side-by-side?
diff a2.txt b2.txt > output2.txt
diff a3.txt b3.txt > output3.txt
cat output1.txt output2.txt output3.txt > output.txt
The output.txt file will then have the concatenation of all diffs in a
single file, which you can then upload to Codestriker as a single