Program

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#!/bin/bash

# Prompt the user for a string
echo -n "Enter a string: "
read str

# Initialize counters for vowels, consonants, and numbers
vowels=0
consonants=0
numbers=0

# Loop through each character in the string
for char in $(echo "$str" | grep -o .)
do
  # Check if the character is a vowel
  if [[ $char =~ [aeiouAEIOU] ]]
  then
    ((vowels++))
  # Check if the character is a consonant
  elif [[ $char =~ [bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ] ]]
  then
    ((consonants++))
  # Otherwise, the character must be a number
  else
    ((numbers++))
  fi
done
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