Ubuntu Download Helper using apt-get and apt-cache search

#!/usr/bin/env bash
clear;
echo "+------------------------------------------------------------------------------------------------+";
echo "|  please enter a search string for apt-cache search                            ";
echo "+------------------------------------------------------------------------------------------------+";
        read search;
echo "here are all the matches to apt-cache $search";
sudo apt-cache search $search;      
echo "+------------------------------------------------------------------------------------------------+";
echo "|  do you want to narrow this list with filter string? y/n                      ";
echo "| << note: grep filter will parse only the package name, not the description >> ";
echo "+------------------------------------------------------------------------------------------------+";
read yn
if [[ $yn == "y" ]]
 then
 echo "enter your filter string:";
 read filter;
  if [ "$filter" ]
   then 
echo "+------------------------------------------------------------------------------------------------+";
echo "| here are the results for apt-cache search $search | grep $filter               ";
echo "+------------------------------------------------------------------------------------------------+";
    sudo apt-cache search $search | grep $filter
echo "+------------------------------------------------------------------------------------------------+";
echo "| proceed to download these results? y/n                                        ";         
echo "+------------------------------------------------------------------------------------------------+";
    read yn
    if [[ $yn == y* ]]
      then
      for i in `sudo apt-cache search $search | awk '{ print $1 }' | grep $filter `
       do
           echo "# $i" >> $0;
           sudo apt-get install -y $i;
       done
     else
       exit;
    fi
 fi
 else
echo "+------------------------------------------------------------------------------------------------+";
echo "| you do not want a filter                                                      ";
echo "| proceed to download all results of apt-cache search? y/n                      ";
echo "+------------------------------------------------------------------------------------------------+";
      read yn
      if [[ $yn == y* ]]
     then
    for i in `sudo apt-cache search $search | awk '{ print $1 }'`
     do
         echo "# $i" >> $0;
         sudo apt-get install -y $i;
     done
      else
 exit;
 fi
fi