Redirection in the middle of a script?

Redirection in the middle of a script?

[Jahwan Kim]

Dear all,
    I have this long-standing question, which I can't find an answer to,
perhaps because it's impossible.  Is it possible to redirect
STDOUT/STDIN/STDERR/just about any file descriptor *in the middle of* a
script, not at the beginning?  That is,

#!/bin/zsh
... (part of which the STDOUT is, say, your terminal)
...
(some magical redirection command I'm looking for, which should do what
    perl's open STDOUT ">foo.out" will do)
... (and from this point on, everything you send to STDOUT will go to foo.out)
...

Am I asking too much to a mere shell?  :) 

Cheers,
Jahwan

Re: Redirection in the middle of a script?

[Bart Schaefer]

On Sep 30, 12:04am, Jahwan Kim wrote:
} Subject: Redirection in the middle of a script?
}
}     I have this long-standing question, which I can't find an answer to,
} perhaps because it's impossible.  Is it possible to redirect
} STDOUT/STDIN/STDERR/just about any file descriptor *in the middle of* a
} script, not at the beginning?  That is,

You can do this in any Bourne-shell-like shell, even very old ones, with

exec <foo.in		# redirects stdin
exec >foo.out		# redirects stdout
exec 2>foo.err		# redirects stderr

This is all documented in the "Redirection" section of the zsh manual.

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Re: Redirection in the middle of a script?

[Andrew Main]

Jahwan Kim wrote:
>(some magical redirection command I'm looking for, which should do what
>    perl's open STDOUT ">foo.out" will do)

exec >foo.out

-zefram