ftp://ftp.ucr.ac.cr/pub/Unix/linux/distribuciones/ubuntu/pool/universe/r/  direct

[DIR]r-base/  direct  300+ twin directories
[DIR]r-cran-hdf5/  direct  280+ twin directories
[DIR]r-cran-maps/  direct  290+ twin directories
[DIR]r-cran-coda/  direct  280+ twin directories
[DIR]r-cran-eco/  direct  250+ twin directories
[DIR]r-cran-bayesm/  direct  250+ twin directories
[DIR]r-cran-mnp/  direct  290+ twin directories
[DIR]r-cran-vgam/  direct  240+ twin directories
[DIR]r-noncran-lindsey/  direct  260+ twin directories
[DIR]r5rs-doc/  direct  250+ twin directories
[DIR]rabbyt/  direct  240+ twin directories
[DIR]raccess/  direct  320+ twin directories
[DIR]radiance/  direct  260+ twin directories
[DIR]radioclk/  direct  290+ twin directories
[DIR]radiusclient-ng/  direct  330+ twin directories
[DIR]radiuscontext/  direct  280+ twin directories
[DIR]radiusd-cistron/  direct  440+ twin directories
[DIR]rafkill/  direct  320+ twin directories
[DIR]rageircd/  direct  240+ twin directories
[DIR]raidutils/  direct  320+ twin directories
[DIR]r-cran-runit/  direct  230+ twin directories
[DIR]r-zoo/  direct  280+ twin directories
[DIR]r6040/  direct  230+ twin directories
[DIR]radeontool/  direct  510+ twin directories
[DIR]radiusclient/  direct  470+ twin directories
[DIR]radiusd-livingston/  direct  290+ twin directories
[DIR]raidtools/  direct  530+ twin directories
[DIR]raidtools2/  direct  350+ twin directories
[DIR]rain/  direct  610+ twin directories
[DIR]randim/  direct  230+ twin directories
[DIR]randomize-lines/  direct  290+ twin directories
[DIR]randomsound/  direct  230+ twin directories
[DIR]rant/  direct  240+ twin directories
[DIR]rasqal/  direct  440+ twin directories
[DIR]ratmenu/  direct  330+ twin directories
[DIR]ratpoison/  direct  480+ twin directories
[DIR]rawstudio/  direct  340+ twin directories
[DIR]rblcheck/  direct  420+ twin directories
[DIR]rbldnsd/  direct  410+ twin directories
[DIR]rbscrobbler/  direct  270+ twin directories
[DIR]rc/  direct  800+ twin directories
[DIR]r-cran-getopt/  direct  220+ twin directories
[DIR]r-cran-gmaps/  direct  230+ twin directories
[DIR]r-cran-jit/  direct  220+ twin directories
[DIR]r-cran-lpsolve/  direct  230+ twin directories
[DIR]r-cran-mapdata/  direct  290+ twin directories
[DIR]r-cran-pscl/  direct  250+ twin directories
[DIR]r-cran-psy/  direct  280+ twin directories
[DIR]r-cran-sn/  direct  230+ twin directories
[DIR]r-cran-xml/  direct  300+ twin directories