Github

Github

git show commithash

git log --author=name

git log --grep=word

(undo last commit)
git reset --soft HEAD~1

(ammend last commit message)
git commit --amend -m "New commit message"

show what files changed in a commit
git show --name-only {commit}

git push --force origin <BRANCH-NAME>

reset HEAD
git config --global alias.unstage 'reset HEAD --'

last commit
git config --global alias.last 'log -1 HEAD'

amend date last commit 
http://stackoverflow.com/questions/454734/how-can-one-change-the-timestamp-of-an-old-commit-in-git

http ssl verify false
http.sslVerify false