SHELL

git diff files of different branches

# If the two files have different paths in each branch

git diff branch1:path/to/file branch2:path/to/file

diff specific file git different branches

git diff mybranch master -- myfile.cs

git diff between branches file

Just specify your local branch1 or remote origin/branch2
git diff branch1 origin/branch2	#show diff referenced from second branch
git diff branch1 branch2 file.txt #show diff only between file.txt