Catch exit code of specific background process

Shell Programming and Scripting
1

Hi all, i hava a specific backgroud process. I have de PID of this process. At some time, the process finish his job, is there any way to catch the exit code? I use "echo $?" normally for commands.

Thanks!

2

Have a look at wait

mute@clt:~$ { sleep 30; exit 123; } &
[1] 24619
mute@clt:~$ wait 24619
[1]+  Exit 123                { sleep 30; exit 123; }
mute@clt:~$ echo $?
123

of course, wait blocks...

3

Use wait

wait <PID>
status=$?

EDIT: too late...