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From: Bart Schaefer <schaefer@brasslantern.com>
Message-Id: <170309180417.ZM14034@torch.brasslantern.com>
Date: Thu, 9 Mar 2017 18:04:17 -0800
In-Reply-To: <CADgEyUsOZZZhiJM5JQrdHORt-ehoLJtYmwW8po4=LViuydMFiw@mail.gmail.com>
Comments: In reply to Nathan Dorfman <na@rtfm.net>
        "Redirect a specific file descriptor to a pipe?" (Mar  9,  5:21pm)
References: <CADgEyUsOZZZhiJM5JQrdHORt-ehoLJtYmwW8po4=LViuydMFiw@mail.gmail.com>
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To: Nathan Dorfman <na@rtfm.net>, zsh-users@zsh.org
Subject: Re: Redirect a specific file descriptor to a pipe?
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On Mar 9,  5:21pm, Nathan Dorfman wrote:
}
} strace -o /dev/fd/3 ./a.out > out.log 2> err.log 3>XXX
} 
} Instead of file XXX, I'd like to send fd 3 to |less. Is it possible?

You just need this:

strace -o /dev/fd/3 ./a.out > out.log 2> err.log 3>&1 | less