for M in ????? 
do
 echo $M
 if [ -d $M ]
 then
  cd $M
  for C in ??* 
  do
   echo $C 
   if [ -d $C ]
   then
    cd $C
    rm F.txt
    cd ..
   fi    
  done
  cd ..
 fi 
done  

zip -r -y all_dates ????? *.html *.htm