/usr/bin/addftinfo
/usr/bin/afmtodit
/usr/bin/chem
/usr/bin/eqn2graph
/usr/bin/gdiffmk
/usr/bin/grap2graph
/usr/bin/grn
/usr/bin/grodvi
/usr/bin/groffer
/usr/bin/grolbp
/usr/bin/grolj4
/usr/bin/gropdf
/usr/bin/gxditview
/usr/bin/hpftodit
/usr/bin/indxbib
/usr/bin/lkbib
/usr/bin/lookbib
/usr/bin/mmroff
/usr/bin/pdfmom
/usr/bin/pdfroff
/usr/bin/pfbtops
/usr/bin/pic2graph
/usr/bin/post-grohtml
/usr/bin/pre-grohtml
/usr/bin/refer
/usr/bin/roff2dvi
/usr/bin/roff2html
/usr/bin/roff2pdf
/usr/bin/roff2ps
/usr/bin/roff2text
/usr/bin/roff2x
/usr/bin/tfmtodit
/usr/bin/xtotroff
You may install this package on Debian with
apt-get
install groff