Unwrap all files into the root directory

unwrap.sh

#!/bin/bash

# Unwrap all files from subdirectories into the root directory
# and remove empty folders.

ROOT_DIR="$1"

if [ -z "$ROOT_DIR" ]; then
    echo "Usage: $0 <root_directory>"
    exit 1
fi

if [ ! -d "$ROOT_DIR" ]; then
    echo "Error: Directory does not exist."
    exit 1
fi

find "$ROOT_DIR" -type f | while read -r file; do
    mv "$file" "$ROOT_DIR" 2>/dev/null || {
        base=$(basename "$file")
        count=1
        while [ -e "$ROOT_DIR/$base" ]; do
            base="${base%.*}_$count.${base##*.}"
            count=$((count + 1))
        done
        mv "$file" "$ROOT_DIR/$base"
    }
done

find "$ROOT_DIR" -type d -empty -delete

echo "All files unwrapped successfully!"