On Fri, 1 Oct 2004 20:17:14 +0900, Kaspar Schiess <eule / space.ch> wrote: > Just in case anyone is really interested, the def is > > ~ def method_missing( method, *args ) > ~ system method.to_s + " " + args.join(' ') > ~ end > > and you could perhaps call > > ~ dir %w{ *.rb } > > ++ for the method missing comment ! ... etc. On the subject (if not the Subject:): Have anybody played with make it possible to use Ruby for running sort-of shell scripts? Ie, including pipes etc. As it is, there are some programs that call a lot of shell commands that I write in sh instead of Ruby, and where I'd really like to do them in Ruby. The starting point I see for something like this would be to override method_missing like above, but make it return an object where | is overridden, and that have handling of shell return codes. The challenges I see here is - It's not possible to override the trueness/falseness of an object, so we'd need to call a special method to find out if a command failed or passed - It is hard to implement -e (give an error if a complete shell line fails - but not if we have an fail || true). Maybe trace_func could be of help here, though. Eivind.