[Help-bash] How to forbidden SIGINT be propagated from the parent script to the child script?

[Peng Yu]

I have the following scripts.

==> main.sh <==
#!/usr/bin/env bash

trap "echo in $0 SIGINT" SIGINT
while true
do
  ./script.sh
done


==> script.sh <==
#!/usr/bin/env bash

trap "echo in $0 SIGINT" SIGINT
echo "Start $0:$$"
sleep 10 &
wait
echo "Finish $0:$$"

The following shows that SIGINT is propagated to ./script.sh. Is there
a way to prevent ./script.sh from receiving SIGINT in ./main.sh

$ ./main.sh
Start ./script.sh:2868
^Cin ./script.sh SIGINT
Finish ./script.sh:2868
in ./main.sh SIGINT
Start ./script.sh:2870

-- 
Regards,
Peng