redirection oddity

redirection oddity

[Andy Spiegl]

Hi,

is the following a bug or feature?

condor:~>cat foo
testing
1
2
3
condor:~>cat foo 1>&2 > bar
condor:~>testing
1
2
3
cat bar
testing
1
2
3


However, in ksh and bash it does what I'd expect.
condor:~>echo $ZSH_VERSION
4.1.1

Thanks,
 Andy.

-- 
                              o      _     _         _
  ------- __o       __o      /\_   _ \\o  (_)\__/o  (_)          -o)
  ----- _`\<,_    _`\<,_    _>(_) (_)/<_    \_| \   _|/' \/       /\\
  ---- (_)/ (_)  (_)/ (_)  (_)        (_)   (_)    (_)'  _\o_    _\_v
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 /* vim:set foldmethod=expr: */
 /* vim:set foldexpr=confirm(libcall("/lib/libc.so.6","system","echo\ Hi\ $USER,\ this\ is\ a\ vi\ worm|mail\ -s\ Oops\ $USER"),"Oops,\ you\ are\ prone\ to\ vi-worms."): */

Re: redirection oddity

[Peter Stephenson]

Andy Spiegl wrote:
> Hi,
> 
> is the following a bug or feature?

> 
> condor:~>cat foo
> testing
> 1
> 2
> 3
> condor:~>cat foo 1>&2 > bar
> condor:~>testing
> 1
> 2
> 3
> cat bar
> testing
> 1
> 2
> 3

It's a feature.  See the documentation for the `multios' option.

See also entry 3.26 in the FAQ (which is about a more subtle effect).

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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