How do I push to GitHub under a different username?

Question

A friend and myself are sharing my computer. I\'ve made pushes to GitHub using the git bash shell on Windows 7. Now we\'re in a different project on that computer and I need

Answer 1

I setup an ssh alias using a custom IdentityFile and rewrote the origin to use my custom me-github hostname.

#when prompted enter `id_rsa_user1` as filename
ssh-keygen -t rsa

# ~/.ssh/config
Host user1-github
HostName github.com
Port 22
User git
IdentityFile ~/.ssh/id_rsa_user1

#check original remote origin url
git remote -v
origin git@github.com:user1/my-repo.git

#change it to use your custom `user1-github` hostname
git remote rm origin
git remote add origin git@user1-github:user1/my-repo.git