SHELL

git go to previous branch

git checkout -

git move branch to previous commit

git checkout 1258f0d0aae    #detach from master
git branch -f master HEAD   #exactly as above

#optionally reattach to master
git checkout master

how to move to previous commit in git

git checkout <commit-id> .
git add .
git commit -m "Reverting to <commit-id>"
git push

how to move to previous commit in git

$ git checkout <commit-id> .

git move latest commit to new branch

git checkout existingbranch
git branch newBranch
git reset --hard HEAD~2 # go back 2 commits on existingBranch