Create patch from uncommitted changes

There are two options when generating a patch from uncommitted changes: git diff and git diff --cached. git diff captures unstaged changes, modifications in the working directory that have not been added to the index. While git diff --cached captures staged changes that have been added to the index with git add but not yet committed. When creating a patch, git diff > file.patch will save only unstaged changes, whereas git diff --cached > file.patch will save only staged changes. Later, you can apply these patches using git apply file.patch to restore the changes in another working directory.