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C-z fg bg sees thru scripts to affect sleep

From: Dan Jacobson
Subject: C-z fg bg sees thru scripts to affect sleep
Date: 30 Oct 2001 10:39:20 +0800
User-agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/20.7

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
sleep 100
echo part 2
sleep 99
echo part 3

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

[1]+  Stopped(SIGTSTP)        /tmp/bb
sh-2.05$ fg
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
http://www.geocities.com/jidanni Tel+886-4-25854780

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