Any other alternative to at

[Ralf Mardorf]

On Sun, 18 Feb 2018 16:34:10 +0000, Chris Green wrote:
>There are far better methods available than simple timing for this
>sort of thing.  Even bash has ways of saying 'execute this only when
>that has finished'.

Assuming you are thinking about "app_A && app_B" and alike, then you are
mistaken, an audio app often already returns exit code 0, before
everything is ready.