/usr/bin/thumbpdf
/usr/share/texlive/texmf-dist/source/latex/koma-script/doc/bin/genhtmlidx.pl
/usr/share/texlive/texmf-dist/source/latex/koma-script/doc/bin/genindex.pl
You may install this package on Debian with
apt-get
install texlive-latex-recommended