How to view file diff in git before commit
git, git-diff
Solution
If you want to see what you haven't `git add`ed yet:
git diff myfile.txt
or if you want to see already added changes
git diff --cached myfile.txt
Problem
This often happens to me: I'm working on a couple related changes at the same time over the course of a day or two, and when it's time to commit, I end up forgetting what changed in a specific file. (This is just a personal git repo, so I'm ok with having more than one update in a commit.) Is there any way to preview the changes between my local file, which is about to be checked in, and the last commit for that file? Something like: ``` git diff --changed /myfile.txt ``` And it would print out something like: ``` line 23 (last commit): var = 2+2 (current): var = myfunction() + 2 line 149 (last commit): return var (current): return var / 7 ``` This way, I could quickly see what I had done in that file since it was last checked in.