Dear sir,
I read your project description.
I am sure I can do this for you, in a timely manner.
Please take a look at my profile, here is my skillset as well as more informations about me.
https://www.freelancer.com/u/thms00.html
Since I am looking to sharpen my BASH skillset, I am offering you a small bid while having experience with it. You'll have to tell me how to do the comparison but I was thinking either by size or md5 sum.
Please come and have a PM chat with me, I am kind and helpful.
I will also add you on Skype once the project is finished so if you have any problems I'll be there, I am a full time Freelancer.
Willing to start right-away!
Regards,