OS X Terminal shortcut: Jump to beginning/end of line

fn + shift + leftArrow = goto beginning of line
fn + shift + rightArrow = goto end of line

these work for me

In the latest Mac OS You can use shift + home or shift + end

I use a handy app called Karabiner to do this, and many other things. It's free and open source.

It's a keyboard remapper, with a lot of handy presets for many common remaps that people may want to do.

As you can see from the screenshot, this remap is included as a preset in Karabiner.

Hope this helps. Happy remapping!

As setup in the terminal using vi:

The Home button on a Macbook Pro keyboard: Fn + Left Arrow.

The End button on a Macbook Pro keyboard: Fn + Right Arrow.

Here I found a tweak for this, without any third party tool. This will make the following shortcut to work:

 fn + right: to go to the end of the line.
 fn + left: to go to the beginning of the line.

• Open terminal preferences.(cmd + ,).
• Go to your selected theme and then to the keyboard tab.
  

• And add a new entry as following.

• That's all. Now close and check.

  Hope it helps.

EDIT: Refer to the comment by @Maurice Gilden below for more insights.