Groff-&groff-depversion; needs the following to be installed: bash: sh binutils: ar, as, ld bison: bison, yacc diffutils: cmp fileutils: chmod, cp, ls, mkdir, mv, rm, touch gcc: cc, c++ grep: egrep, grep make: make mawk: awk sed: sed sh-utils: basename, date, echo, expr, uname textutils: cat, tr