I have 2 Binary Files  FileA and FileC Its is such that FileC = FileA + FileB using the cat utilityHow do I subtract  FileA  from  FileC  to get  FileB ?PS: I am using Ubuntu Oneiric
Subtracting Binary files
files;cat
Assuling you have stat on your plateform to get the size of FileA, you could do something like:dd if=./FileC of=./FileB bs=1 skip=$(stat -c %s ./FileA)which should work on any type of file.