From: David Alan Black <dblack@...>
Date: 2001-08-08T08:22:19+09:00
Subject: [ruby-talk:19318] Re: how to redirect $sdtout

Hello --

On Wed, 8 Aug 2001, markus jais wrote:

> $old_fh = select(LOGFILE);                  # switch to LOGFILE for output
> print "Countdown initiated ...\n";
> select($old_fh);                            # return to original output
> print "You have 30 seconds to reach minimum safety distance.\n";
>
> my ruby solution does not work!
>
> logfile = File.new("log.txt", "w+")
> old = $stdout.clone
> $stdout.reopen(logfile)
> print "Countdown initiated ...\n";
> $stdout.reopen(old)
> old.close
> print "You have 30 seconds to reach minimum safety distance.\n";

You don't like #puts? :-)


> both strings are written to stdout and the file log.txt is empty.
> can anybody tell me why?? I found something similar
> in the mailing list archive, but it just doesn't work

Could you/should you do this with $defout rather than $stdout?

  logfile = File.new("log.txt", "w+")
  old = $defout
  $defout = logfile
  print "Countdown initiated ...\n";
  $defout = old
  print "You have 30 seconds to reach minimum safety distance.\n";


or something like that.


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav