From: Greg Willits <lists@...>
Date: 2009-12-21T05:28:43+09:00
Subject: How capture console error messge for logging?

OS X, Ruby 1.8

I've been searching & reading, but not finding (or perhaps just not
understanding) how I can capture as a string the exact same error
message text that would normally get dumped to Terminal.

So, if I write this to generate an error:

  puts "hello"
  bogus_command

I'll get a file name, line number, and description of an error dumped to
the Terminal.

How do I snag all that text so I can add it to a log file?

Obviously, I'd start with a begin/rescue and inside rescue I'd do
something. I've fiddled with some examples I've seen but nothing is
doing what I want. I just want that same text captured as a string into
a variable I can then use however I want.

begin
  puts "hello"
  bogus_command
rescue
  # now what?
  # I was hoping this would work
  # x = $stderr.print
  # but it doesn't
end

I'm sure it's some standard *nix thing, but I'm not getting it.

Thanks.

-- greg willits
-- 
Posted via http://www.ruby-forum.com/.