ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/src/usr.bin/  direct

[DIR]ypwhich/  direct  340+ twin directories
[DIR]ypmatch/  direct  340+ twin directories
[DIR]ypcat/  direct  340+ twin directories
[DIR]yes/  direct  353+ twin directories
[DIR]yacc/  direct  762+ twin directories
[DIR]xstr/  direct  1073+ twin directories
[DIR]xlint/  direct  822+ twin directories
[DIR]xinstall/  direct  361+ twin directories
[DIR]xargs/  direct  613+ twin directories
[DIR]write/  direct  1249+ twin directories
[DIR]window/  direct  2290+ twin directories
[DIR]whois/  direct  2666+ twin directories
[DIR]who/  direct  405+ twin directories
[DIR]which/  direct  1547+ twin directories
[DIR]whereis/  direct  362+ twin directories
[DIR]whatis/  direct  508+ twin directories
[DIR]what/  direct  381+ twin directories
[DIR]wc/  direct  40872+ twin directories
[DIR]watch/  direct  582+ twin directories
[DIR]wall/  direct  405+ twin directories
[DIR]w/  direct  3778+ twin directories
[DIR]vmstat/  direct  341+ twin directories
[DIR]vis/  direct  884+ twin directories
[DIR]vi/  direct  27160+ twin directories
[DIR]vgrind/  direct  1022+ twin directories
[DIR]vacation/  direct  1694+ twin directories
[DIR]uuidgen/  direct  348+ twin directories
[DIR]uuencode/  direct  566+ twin directories
[DIR]uudecode/  direct  620+ twin directories
[DIR]uucp/  direct  4882+ twin directories
[DIR]users/  direct  4124+ twin directories
[DIR]usbhidctl/  direct  307+ twin directories
[DIR]usbhidaction/  direct  288+ twin directories
[DIR]unzip/  direct  2496+ twin directories
[DIR]unvis/  direct  341+ twin directories
[DIR]units/  direct  4689+ twin directories
[DIR]uniq/  direct  385+ twin directories
[DIR]unifdef/  direct  1545+ twin directories
[DIR]unexpand/  direct  357+ twin directories
[DIR]uname/  direct  383+ twin directories
[DIR]ul/  direct  481+ twin directories
[DIR]uac/  direct  133 twin directories
[DIR]tty/  direct  2603+ twin directories
[DIR]tsort/  direct  553+ twin directories
[DIR]tset/  direct  389+ twin directories
[DIR]truss/  direct  131 twin directories
[DIR]truncate/  direct  340+ twin directories
[DIR]true/  direct  438+ twin directories
[DIR]tr/  direct  58399+ twin directories
[DIR]tput/  direct  339+ twin directories