check difference on git branch code example

Example 1: get difference between two git branches

Just specify your local branch1 or remote origin/branch2
git diff branch1 origin/branch2	#show diff referenced from second branch

Example 2: git check diff between two repositories

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