C-z fg bg sees thru scripts to affect sleep

[Dan Jacobson]

I may have discovered a massive problem with C-z and fg and bg when
dealing with sleep in scripts.  As you can see from the date stamps,
it doesn't wait... to test, start the script then type C-z fg C-z bg ...


sh-2.05$ cat /tmp/bb
echo part 1
date
sleep 100
echo part 2
date
sleep 99
echo part 3
date

sh-2.05$ /tmp/bb
part 1
Tue Oct 30 10:22:30 CST 2001

[1]+  Stopped(SIGTSTP)        /tmp/bb
sh-2.05$ fg
/tmp/bb
part 2
Tue Oct 30 10:22:37 CST 2001

[1]+  Stopped(SIGTSTP)        /tmp/bb
sh-2.05$ bg
[1]+ /tmp/bb &
sh-2.05$ part 3
Tue Oct 30 10:22:40 CST 2001

[1]+  Done                    /tmp/bb

It is sort of like I used "." to invoke the script, but I didn't.  Ok,
did I finally find a bug or is it just another "let's be silly in
public" of mine?

P.S. I don't really live in "CST".  I need a better vanity plate for
that one, but fixing it isn't worth the bother.  Well, OK, I do indeed
live in a CST but not that one.  Anyway, don't deduct my coolness
points.
-- 
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