.irbrc location/path

ruby-talk
1

Hi all,

I want to place *.irbrc* config file in a folder in */tmp* or any other
folder other than under /home and point my *$IRBRC* environment variable to
this location.
*Is this possible??*

From the init.rb file, I found the following code snippet:

# enumerate possible rc-file base name generators
  def IRB.rc_file_generators
    if irbrc = ENV["IRBRC"]
      yield proc{|rc| rc == "rc" ? irbrc : irbrc+rc}
    end
    if home = ENV["HOME"]
      yield proc{|rc| home+"/.irb#{rc}"}
    end
    home = Dir.pwd
    yield proc{|rc| home+"/.irb#{rc}"}
    yield proc{|rc| home+"/irb#{rc.sub(/\A_?/, '.')}"}
    yield proc{|rc| home+"/_irb#{rc}"}
    *yield proc{|rc| home+"/$irb#{rc}"}*
  end

Could somebody please help me understand the above method? Can .irbrc be
stored in folders other than home, like in /tmp or in /root etc..?

Thanks in advance,

Regards,
Narayanan