/usr/share/doc/ruby1.8-examples/examples/drb/ is in ruby1.8-examples 1.8.7.352-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/ruby1.8-examples/examples/drb/README.rd
/usr/share/doc/ruby1.8-examples/examples/drb/README.rd.ja
/usr/share/doc/ruby1.8-examples/examples/drb/darray.rb
/usr/share/doc/ruby1.8-examples/examples/drb/darrayc.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dbiff.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dcdbiff.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dchatc.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dchats.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dhasen.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dhasenc.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dlogc.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dlogd.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dqin.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dqlib.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dqout.rb
/usr/share/doc/ruby1.8-examples/examples/drb/dqueue.rb
/usr/share/doc/ruby1.8-examples/examples/drb/drbc.rb
/usr/share/doc/ruby1.8-examples/examples/drb/drbch.rb
/usr/share/doc/ruby1.8-examples/examples/drb/drbm.rb
/usr/share/doc/ruby1.8-examples/examples/drb/drbmc.rb
/usr/share/doc/ruby1.8-examples/examples/drb/drbs-acl.rb
/usr/share/doc/ruby1.8-examples/examples/drb/drbs.rb
/usr/share/doc/ruby1.8-examples/examples/drb/drbssl_c.rb
/usr/share/doc/ruby1.8-examples/examples/drb/drbssl_s.rb
/usr/share/doc/ruby1.8-examples/examples/drb/extserv_test.rb
/usr/share/doc/ruby1.8-examples/examples/drb/gw_ct.rb
/usr/share/doc/ruby1.8-examples/examples/drb/gw_cu.rb
/usr/share/doc/ruby1.8-examples/examples/drb/gw_s.rb
/usr/share/doc/ruby1.8-examples/examples/drb/holderc.rb
/usr/share/doc/ruby1.8-examples/examples/drb/holders.rb
/usr/share/doc/ruby1.8-examples/examples/drb/http0.rb
/usr/share/doc/ruby1.8-examples/examples/drb/http0serv.rb
/usr/share/doc/ruby1.8-examples/examples/drb/name.rb
/usr/share/doc/ruby1.8-examples/examples/drb/namec.rb
/usr/share/doc/ruby1.8-examples/examples/drb/old_tuplespace.rb
/usr/share/doc/ruby1.8-examples/examples/drb/rinda_ts.rb
/usr/share/doc/ruby1.8-examples/examples/drb/rindac.rb
/usr/share/doc/ruby1.8-examples/examples/drb/rindas.rb
/usr/share/doc/ruby1.8-examples/examples/drb/ring_echo.rb
/usr/share/doc/ruby1.8-examples/examples/drb/ring_inspect.rb
/usr/share/doc/ruby1.8-examples/examples/drb/ring_place.rb
/usr/share/doc/ruby1.8-examples/examples/drb/simpletuple.rb
/usr/share/doc/ruby1.8-examples/examples/drb/speedc.rb
/usr/share/doc/ruby1.8-examples/examples/drb/speeds.rb