how to undo all whitespace changes with git

Question

I have a git repo, where I replaced a lot of files locally.

git status now shows many many modified files.

Some are \"really modified\", others only differ by li

Answer 1

Windows Users - don't despair!

1. Install the Windows Subsystem for Linux (select Ubuntu).
2. Run WSL.
3. Mount the drive that contains your repo. To access your C drive, execute cd /mnt/c.
4. Change directory to your repo: cd repos/my-project
5. Execute the command from Aristotle Pagaltzis's incredible answer:

git diff -b --numstat \
| egrep $'^0\t0\t' \
| cut -d$'\t' -f3- \
| xargs git checkout HEAD --

6. Upvote Aristotle Pagaltzis's answer.