By the way, if the program outputs the command, our program can receive the outputs and filters them out. So, that's still ok. But turn the echo on is not what other program can revert it back, that's a bug.
By the way, if the program outputs the command, our program can receive the outputs and filters them out. So, that's still ok. But turn the echo on is not what other program can revert it back, that's a bug.