def self.run_config
rc = "~/.rb_shell"
begin
load File.expand_path(rc) if ENV.key?("HOME")
rescue LoadError, Errno::ENOENT
rescue
print "load error: #{rc}\n"
print $!.class, ": ", $!, "\n"
for err in $@[0, $@.size - 2]
print "\t", err, "\n"
end
end
end