From: jackster the jackle <johnsheahan@...>
Date: 2008-10-21T03:30:44+09:00
Subject: Re: Error Exception if script doesn't run

I finally figured out the last problem which was why some of my Ruby 
generated errors that were were not able to be included in my sendmail 
command. The problem was the error that was contained in my "e" value 
had some text with ` and ' characters in them as follows:

  undefined local variable or method `bad_code_here' for main:Object

Once I added some gsub code to remove those characters, all is working 
well and I get an email with the error regardless of whether a shell 
command or ruby code were the cause of the error. Here is my final code 
which I will now implement in all my scripts (unless someone sees 
another problem) so I'm no longer blind sided by know-it-alls here at 
work that come to me with "you know your scripts have failed, don't 
you?" :-)

[code]
begin

z = `cp /home/jsmith/js.txt /home/jsmith/js2.txt`
unless $?.success?; raise "Shell Command Failure for line #{__LINE__} in 
#{__FILE__}" ; end

# The following line of code will cause Ruby to generate an error
bad_code_here

rescue Exception => e
   if e
     puts e
     e.to_s.gsub!("'","-")
     e.to_s.gsub!("`","-")
     %x{echo "Subject: Script Error: #{__FILE__}:#{__LINE__}\n\n#{e}"  | 
/usr/sbin/sendmail -f my_server\@gmail.com john.smith\@email.com}
   end
end
[/code]

Thanks to everyone for all the help, I learned alot.
jack


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