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Re: value of $$ in backgrounded process
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From: |
Greg Wooledge |
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Subject: |
Re: value of $$ in backgrounded process |
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Date: |
Wed, 6 Oct 2021 14:39:25 -0400 |
On Wed, Oct 06, 2021 at 04:20:36PM +0200, kovacs istvan wrote:
> I have been through the docs, but could not find clearly:
>
> what should $$ expand to in a backgrounded process?
>
> Currently it will expand to the main process ID. Is this fixed, or
> implementation specific?
That's the intended behavior. It's not a bug. $$ always expands to the
process ID of the main shell, even when used within a subshell.
If you want the process ID of a subshell, there's BASHPID.