all-full-example.sh

@@ -35,8 +35,11 @@ cleanup() {
     kill_child_jobs
 }
 
+#trap "kill_child_jobs" INT TERM QUIT
+#trap date INT TERM QUIT
+
 # From https://unix.stackexchange.com/a/240736
-for sig in INT QUIT HUP TERM; do
+for sig in INT QUIT HUP TERM ALRM USR1; do
   trap "
     cleanup
     trap - $sig EXIT

dash.sh

@@ -1,19 +0,0 @@
-#!/bin/sh
-set -e
-
-# From https://stackoverflow.com/a/360275
-kill_child_jobs() {
-    echo "In kill_child_jobs()..."
-    # Workaround for https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=482999
-    tmp="$(mktemp)"
-    jobs -p > "$tmp"
-    child_pids=$(cat "$tmp")
-    for child in $child_pids
-    do
-        echo Killing "$child"
-        # From https://stackoverflow.com/a/11231970
-        kill "$child" || true
-    done
-
-    rm "$tmp"
-}

zsh.sh

@@ -8,3 +8,21 @@ kill_child_jobs() {
     # From https://unix.stackexchange.com/a/544167
     while kill %% >/dev/null; do :; done
 }
+cleanup() {
+    kill_child_jobs
+}
+
+# From https://unix.stackexchange.com/a/240736
+for sig in INT QUIT HUP TERM ALRM USR1; do
+  trap "
+    cleanup
+    trap - $sig EXIT
+    kill -s $sig "'"$$"' "$sig"
+done
+trap cleanup EXIT
+
+yes aa &
+yes b &
+sleep 100 &
+
+wait