blob: f2498024f1f41677b1060375c87da607185f6fb4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
a() {
(exit 2)
echo a:$?
(kill -s USR1 $$; echo b:$?; exit 3)
echo c:$? # does not execute
(exit 4)
}
trap "echo Trap; return" USR1
a
echo d:$?
# It's debatable what is the correct value above.
# Does 'return' in trap sees $? == 2 or $? == 3?
# IOW: after (kill..), does shell first wait for its completion
# and sets $?, then checks pending signals and runs a trap handler,
# or does it first checks pending signals and runs handler?
# hush does the former, and prints 3.
|
