On 11/16/25 7:05 AM, James Szinger wrote:
On Sun, 16 Nov 2025 03:05:27 -0800
ToddAndMargo via users <[email protected]> wrote:
Hi All,
There is STDOUT, STDERR, and the exit code ($? in bash).
What channel is it stored in? STDEXIT?
man 2 _exit
man 2 wait
There is no IO stream involved. The child process sends the exit code
to the kernel using _exit and the parent reads it from the kernel
using wait. It's been this way since UNIX V6 in 1975.
Jim
Thank you!
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