On Wed, Jan 29, 2020 at 01:05:32PM +0700, Robert Elz wrote: > and (with all respect to Gred) please avoid archaic uses, and use the > commands as they're currently specified, while "trap - INT" and "trap INT" > do the same thing, the former is the standard way, similarly for > "kill -INT ..." and "kill -s INT ..." the latter is the modern version.
I had <https://www.cons.org/cracauer/sigint.html> open at the time, and got the syntax from there. He actually uses the numeric signal specifiers ("trap 2"), which I replaced with the modern standard naming strings; but I didn't replace the legacy single-argument form with the "-" form. Bash, of course, accepts both. You're not going to talk me into using "kill -s" any time soon, though. I don't think I've *ever* seen anyone use that. > | I'm thinking, put "trap INT; kill -INT $$" inside of it's own function, Yeah, that's pretty common. sigint_handler() { trap - INT kill -INT $$ } trap sigint_handler INT
