Open new Terminal Tab from command line (Mac OS X)

Question

Is it possible to open a new tab in Mac OS X\'s terminal from the command line in a currently opened tab?

I know that the keyboard shortcut to open a new tab in Term

Answer 1

osascript -e 'tell app "Terminal"
   do script "echo hello"
end tell'

This opens a new terminal and executes the command "echo hello" inside it.