bash for replace

 do

  if [ -d $f ];

  then

    echo " $f ";

    z=${f//[www.]/}

    #echo $f | sed 's/www.//'

    echo " $z "

     /usr/bin/ln -s $f  $z

   #/home/mysql/bin/mysql -u root -p1111 $f </home/mysql/var/mysql_count_del.txt

  fi

done