Git - easiest way to see diff with previous version if I have the sha

Question

A colleague of mine checked in some changes to Git, and I want to see exactly what those changes were. In other words, the diff between his check-in and its parent.

Answer 1

If you want to view the diff visually in kdiff3, meld, kompare, xxdiff, tkdiff, diffuse…

git difftool --dir-diff shaOfHisCheckIn^!

git difftool --tool=meld --dir-diff shaOfHisCheckIn^!

git difftool -t meld -d shaOfHisCheckIn^!