Date: Tue, 12 Mar 2024 18:32:19 +1000
From: Martin D Kealey <mar...@kurahaupo.gen.nz>
Message-ID:
<can_u6mxcx2gnc2eyxvao3zssmvroudodkheu_y9lmfktjbq...@mail.gmail.com>
| You don't need '-n' when you specify a PID; the fix is simply to remove it.
That's OK, when there is exactly one PID, but for a task like this,
wait -n -p pid PID1 PID2 PID3 ...
would be a better invocation, to wait for whichever of the list finishes
first. Still doesn't get around the bash idiocy though (for which there
is a very simple solution, I think, which I suggested to Chet off list a
while ago).
In a more realistic application, where the tasks all take longer than
the script takes to start them, and get to the point of waiting, solutions
using -n would mostly work, even in bash. It just fails when the tasks
have finished before "wait -n" is performed (or if they are killed by a
signal).
kre
