SOLVED: Advanced shell scripting question :-)
Bob Bell
bobbell at zk3.dec.com
Fri Sep 6 10:41:34 EDT 2002
On Fri, Sep 06, 2002 at 09:44:53AM -0400, Steven W. Orr <steveo at syslang.net> wrote:
> {
> p 2>&1 >&3 3>&- | tee err
> } 3>&1 | tee out
>
> [This was so elegant I almost cried when I saw it.]
What is the '3>&-' for? I can't seem seem to find what '>&-' means,
plus it runs the same with or without this argument for me.
> {
> lbuffer p 2>&1 >&3 3>&- | tee err
> } 3>&1 | tee out
When I run this on my Tru64 box at work or on my Linux box at home
(which seems to be so underpowered that it doesn't have the
lines-out-of-order problem), I get an empty 'err' file. Does this work
for everybody else?
BTW, Steven, you might want to consider changing 'spawn' to 'spawn
-noecho'.
I must say, though, the expect fakeout to get rid of buffering is
pretty cool...
--
Bob Bell <bobbell at zk3.dec.com>
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