folderizer

 This script moves large numbers of files into subfolders sorted alphabetically.

#!/bin/bash
# Create folders for letters and numbers
for letter in {A..Z}; do
  mkdir -p "$letter"
done
for num in {1..9}; do
  mkdir -p "$num"
done
# Create a folder for punctuation-based files
mkdir -p "M"
# Function to handle files starting with a punctuation mark
handle_punctuation() {
  for file in *; do
    if [[ -f $file ]]; then
      first_char="${file:0:1}"
      if [[ $first_char =~ [[:punct:]] ]]; then
        new_name="_${file}"
        mv "$file" "$new_name"
        first_char="${new_name:0:1}"
        if [[ $first_char =~ [[:digit:]] ]]; then
          mv "$new_name" "$first_char/"
        elif [[ $first_char =~ [A-Za-z] ]]; then
          # Normalize to uppercase for letter folders
          first_char=$(echo "$first_char" | tr '[:lower:]' '[:upper:]')
          mv "$new_name" "$first_char/"
        else
          mv "$new_name" "M/"
        fi
      fi
    fi
  done
}
# Function to move files based on their starting letter
move_files_by_letter() {
  for file in *; do
    if [[ -f $file ]]; then
      first_char="${file:0:1}"
      if [[ $first_char =~ [A-Za-z] ]]; then
        # Normalize to uppercase for letter folders
        first_char=$(echo "$first_char" | tr '[:lower:]' '[:upper:]')
        mkdir -p "$first_char"
        mv "$file" "$first_char/"
      elif [[ $first_char =~ [[:digit:]] ]]; then
        mkdir -p "$first_char"
        mv "$file" "$first_char/"
      fi
    fi
  done
}
# Execute the functions
handle_punctuation
move_files_by_letter