Macos – How to change the line-height in Terminal OSX

This is a function of the Terminal program itself.

In Ubuntu, if you're using terminal you can change this in the terminal application preferences, which is accessible from the terminal application menu in the Ubuntu status bar in the top left of the screen.

Terminal Menu
  -> Preferences
    -> Profile
      -> Cursor
        -> Cursor Shape
          -> I-beam

There's a pull-down menu for "Cursor Shape" and "I beam" is an option.

If anyone comes up at this question, this functionality is available via this plugin for iTerm2:

https://github.com/jaredculp/iterm2-borderless-padding

And from iTerm 3.1 on (currently in alpha), you can have it as an advanced option in height of top and bottom margins and width of left and right margins.