github link.sh

git config --global alias.link '!f() { echo https://$(git config --get remote.origin.url | sed s/^[[:alpha:]]*@// | sed s/:/\\// | sed s/\\.git$//)/commit/$(git rev-parse ${1:-HEAD}); }; f'
git config --global alias.linkc '!git link ${1:-HEAD} | pbcopy'

Usage

git link to show git hub link for single commit

git link
git link HEAD
git link HEAD^
git link 70bfacf861f3ac09fe77165f91df9e471776ddde

On OSX, you can pipe to pbcopy(system clipboard)

git link | pbcopy

or (thanks @timdream)

open `git link`

Link is trustable only when commit were pushed.

Known issue

Remote 'origin' might not github.

License

MIT

and

open `git link`