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From: Eli Schwartz <eschwartz@archlinux.org>
Newsgroups: gnu.bash.bug
Subject: Re: command_not_found_handle() flaw
Date: Tue, 10 Mar 2020 16:31:38 -0400
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Approved: bug-bash@gnu.org
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On 3/10/20 4:04 PM, Greg Wooledge wrote:
> On Tue, Mar 10, 2020 at 08:57:26PM +0100, Phi Debian wrote:
>> Secondly, if yuio insist on going on the subshell path, then $$ and $P=
PID
>> ought to be setup appropriately, here ther are plain bogus.
>=20
> wooledg:~$ command_not_found_handle() { echo "\$\$=3D$$ BASHPID=3D$BASH=
PID"; }
> wooledg:~$ echo "\$\$=3D$$ BASHPID=3D$BASHPID"
> $$=3D859 BASHPID=3D859
> wooledg:~$ wyeiruwyer
> $$=3D859 BASHPID=3D15619
>=20
> It looks correct to me.  $$ is the PID of the main script, and $BASHPID=

> is the PID of the subshell.

I think perhaps what the reporter did not realize is that this is the
expected behavior of a subshell.

$ command_not_found_handle; (command_not_found_handle); sddssdfcdsfsf
$$=3D20819 BASHPID=3D20819
$$=3D20819 BASHPID=3D40810
$$=3D20819 BASHPID=3D40811

i.e. $$ doesn't change, whether invoked via command_not_found_handle or
any other form of subshell.

--=20
Eli Schwartz
Arch Linux Bug Wrangler and Trusted User


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