Safari DELTED.

There was something fishy with my safari web browser on my new mba 2014. I wanted to reset safari to factory default settings. I searched the web and some people said go to safari on the taskbar and click reset, simple as that. But when I checked it there was nothing as reset. Later I realised that they were talking about Mountain Lion or Lion whereas I have Yosemite.

It was annoying and hence I planned to remove safari and reinstall in back.

I used the terminal to remove it... used these commands

cd /Applications/

sudo rm -rf Safari.app/

And then it was removed.

Now I would like to get it back. Can someone help me with this please? I am now just stuck with Chrome here.

Also if anyone could tell me how to reset safari on Yosemite, I would be really grateful to you about that.