From: Andrew Walrond <andrew@...>
Date: 2003-05-03T00:01:20+09:00
Subject: Re: temporary redirection of stdout

Hi Brett

> 
> I don't see the same behavior:
> 
> vor-lord:/tmp> ruby -e 'File.open("output","w") { |f|
>   puts("To the screen")
>   sso = $stdout
>   $stdout=f
>   puts("To the file")
>   $stdout = sso
>   puts("To the screen again")
> }
> '
> To the screen
> To the screen again
> vor-lord:/tmp> cat output
> To the file
> vor-lord:/tmp> ruby -v
> ruby 1.7.2 (2002-02-21) [i386-linux]
> 
> 
> This appears to be version specific:
> 
> vor-lord:/tmp> /usr/bin/ruby -e 'File.open("output","w") { |f|
>   puts("To the screen")
>   sso = $stdout
>   $stdout=f
>   puts("To the file")
>   $stdout = sso
>   puts("To the screen again")
> }
> '
> To the screen
> vor-lord:/tmp> cat output
> To the file
> To the screen again
> vor-lord:/tmp> /usr/bin/ruby -v
> ruby 1.6.7 (2002-03-19) [i386-linux]
> 
> 

This is interesting. Perhaps $stdout has been fixed to be a proper 
reference in newer versions?

Whatever, the .dup solution should be fine for both versions, right?

Andrew