Diff

git diff is a very powerful feature.

One notable use of git diff is that it provides more options than regular diff. For example, if there is one small change within one long line, regular diff cannot highlight this for you. git diff, on the other hand, can with the --word-diff flag. Furthermore, git diff can be used outside a git repository using the --no-index flag. This allows is to function as a powerful diff replacement.

git diff can also be used in patching.