open new terminal tab

gistfile1.applescript

if is_running("Terminal") then
	tell application "System Events"
		tell process "Terminal"
			tell menu bar 1
				tell menu "Shell" of menu bar item "Shell"
					tell menu item "Linux" of menu "New Tab" of menu item "New Tab" to click
				end tell
			end tell
		end tell
		tell window 1 of application "Terminal" to activate
	end tell
else
	tell application "Terminal" to activate
	tell application "Terminal" to activate
end if

return input

on is_running(appName)
	tell application "System Events" to (name of processes) contains appName
end is_running