nspipe

Try this: func commmand(argument: String) -> String { let task:NSTask = NSTask() let pipe:NSPipe = NSPipe() task.launchPath = “/bin/menubar” task.arguments = [argument] task.standardOutput = pipe task.launch() let handle = pipe.fileHandleForReading let data = handle.readDataToEndOfFile() let result_s = String(data: data, encoding: NSUTF8StringEncoding)! return result_s } print(commmand(“getip”)) 2 solved Swift NStask function