Fish shell function to open a new tab in OS X terminal and run a series of commands. Usage tab cmd1 cmd2....

tab.fish

function tab
	set -l ascmd "osascript -e 'tell application \"Terminal\" to activate' -e 'tell application \"System Events\" to tell process \"Terminal\" to keystroke \"t\" using command down'"
	for arg in $argv
		set ascmd "$ascmd -e 'tell application \"Terminal\" to do script \"$arg\" in selected tab of the front window'"
	end
	set -l ascmd "$ascmd;"
	eval $ascmd
end