PREUN

/bin/sh

if [[ "$1" = "0" ]]; then
  perl -ni -e "/^DICT\s*tet\s*ID\s*tet_ID$/ or print" /usr/share/dict/ooo/dictionary.lst
fi

POSTIN

/bin/sh

if [[ ! -f "/usr/share/dict/ooo/dictionary.lst" ]] ||       ! grep -q "^DICT[ \t]*tet[ \t]*ID[ \t]*tet_ID" /usr/share/dict/ooo/dictionary.lst
then
  echo "DICT tet ID tet_ID" >> /usr/share/dict/ooo/dictionary.lst
fi