update-alternatives
dpkg-split
apt-sortpkgs
apt-ftparchive
apt-extracttemplates
zsoelim
whatis
manpath
manconv
man
man-recode
lexgrog
apropos
which
tempfile
sensible-editor
debconf
debconf-show
debconf-set-selections
debconf-escape
debconf-copydb
debconf-communicate
debconf-apt-progress