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Re: about pipe


From: Stephane Chazelas
Subject: Re: about pipe
Date: Mon, 21 Feb 2005 22:01:36 +0000
User-agent: Mutt/1.5.6i

On Mon, Feb 21, 2005 at 05:19:22AM -0800, address@hidden wrote:
[...]
> while running:
> 
> myapp 2>/dev/null&
> 
> I want to change 2>&1 without stop this job.
> Is there some tips to finish it?
[...]

If you mean that you also want to discard stdout, you can try:

gdb myapp << EOF
attach $!
call dup2(2,1)
detach
EOF

or:

gdb myapp << EOF
set auto-solib-add off
attach $!
share libc\\..*
call dup2(1,2)
detach
EOF

myapp needs to be linked dynamically to the libc and even then,
hat's not guaranteed to work.

-- 
St├ęphane




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