This bug report was just submitted via
http://defect.opensolaris.org/bz/show_bug.cgi?id=15478
> Hello,
> It seems ksh93 doesn't wait for a backgrounded shell built-in (like setting
> a environment variable):
> [Expected behavior]:
> cl...@opensolaris:~$ foo="A"; i=0; while (( i <= 2 )); do i=$((i+1));
> foo=$(sleep 1; echo "B"); done; wait; print "$foo"
> B
>
> [Un-expected behavior when backgrounding processes]:
> cl...@opensolaris:~$ foo="A"; i=0; while (( i <= 2 )); do i=$((i+1));
> foo=$(sleep 1; echo "B") & done; wait; print "$foo"
> [1] 11936
> [2] 11937
> [3] 11938
> [3] + Done foo="A"; i=0; while (( i <= 2 )); do
> i=$((i+1));
> foo=$(sleep 1; echo "B") & done; wait; print "$foo"
> [2] - Done foo="A"; i=0; while (( i <= 2 )); do
> i=$((i+1));
> foo=$(sleep 1; echo "B") & done; wait; print "$foo"
> [1] DoneA
> foo="A"; i=0; while (( i <= 2 )); do i=$((i+1));
> foo=$(sleep 1; echo "B") & done; wait; print "$foo"
>
> Note that B is the expected result, however, when backgrounding processes,
> $foo
> is still set to A.
>
> Thank you,
> Clay
Is this the expected behaviour or a bug?
Olga
--
, _ _ ,
{ \/`o;====- Olga Kryzhanovska -====;o`\/ }
.----'-/`-/ [email protected] \-`\-'----.
`'-..-| / Solaris/BSD//C/C++ programmer \ |-..-'`
/\/\ /\/\
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