Guys,
I will attempt your ideas today before eofday.

I however have probably not explained this properly:

I understand two subshells or 1 subshell and main command going same time.

BUT, I need to add a mail function in both.
what I am attempting is that: If the sleep 5 in subshell gets to end and the subshell its in kills -- -$$ ALL before my other main or simultaneous shell is doing some intensive/timeconsuming calculation against a SQL DATABASE -- Then Send and alert mail-s

I just need probably help getting errors directed taking everything into account in a mail command rather then how to terminate both shells.

So basically my logic is:

()
&
()
----
Shell1-
(do intensive calculations and
initialize variables for mail alert
Send mail
kill -- -$$
)
subShell2
(Sleep 5-10 depend
send mail alert if
finishes sleep saying something like (HEY WATCHOUT DATABASE SLOW, OR CRASHED!)

kill -- -$$
)

can someone elaborate how I can remove all possible errors from a mail -s function and ignore them cause in my tests yesterday I noted that thats where the hanging up is occurring, mail -s ONLY, the logic I think might be alright unless im missing something.

Again: if anyone knows how to dev/null mail properly can you add it to a simple echo blah/sleep5/sendmail/kill -- -$$ everything good while other subshell goes with (a sleep -faster time then 1st shell/ alert mail/and kill -- -$$ with other subshell

I can get one subshell to mail alerts by switching sleep times around but other wont.

Thus in the grand scheme of things,
-if my db is slow at responding -and sending an email with the variables I get from DB -and kill before other shell
-the other subshell will -sleep on side and after send mail and then kill all

Thanks Guys!