bin/spell

: B flags, D dictionary, F files, H history, S stop, V data for -v
H=${H-/usr/dict/spellhist}
T=/tmp/spell.$$
V=/dev/null
F= B=
trap "rm -f $T*; exit" 0 1 2 13 15
for A in $*
do
        case $A in
        -v)     B="$B -v"
                V=${T}a ;;
        -a)     ;;
        -b)     D=${D-/usr/dict/hlistb}
                B="$B -b" ;;
        *)      F="$F $A"
        esac
        done
deroff -w $F |\
  sort -u |\
  /usr/lib/spell ${S-/usr/dict/hstop} $T |\
  /usr/lib/spell ${D-/usr/dict/hlista} $V $B |\
  sort -u +0f +0 - $T |\
  tee -a $H
who am i >>$H 2>/dev/null
case $V in
/dev/null)      exit
esac
sed '/^\./d' $V | sort -u +1f +0