#!/bin/bash
input="input.txt"
word_count(){
 file="$1"
 awk 'NF { gsub(/[[:space:]]+$/, ""); word = tolower($0); 
 word = toupper(substr(word, 1, 1)) substr(word, 2); 
 print word }' "$file" | sort | uniq -c | awk '{ printf "%-10s %d\n", $2, $1 }'
}

echo "Do you want to count existing words in $input? (y/n): " 
read choice
if [ $choice == "y" ]
then
 echo "Counting existing words..."
 word_count "$input"
elif [ $choice == "n" ]
 then
  touch newinput.txt
  newitems="newinput.txt"
  echo "How many items do you want to add? " 
  read num_items
  for (( i=0; i<num_items; i++ )); do
   echo "Enter item $((i+1)): " 
   read item
   echo "$item" >> "$newitems"
  done
  echo "New items added. Counting words..."
  word_count "$newitems"
 fi

 > "$newitems"