a script to download all the images courtesy of DeepSeek :)

# Script to download multiple URLs from a text file with improved line handling
# Usage: ./download_urls.sh urls.txt [output_directory]

# Check if input file is provided
if [ -z "$1" ]; then
    echo "Error: Please provide a text file containing URLs"
    echo "Usage: $0 <input_file> [output_directory]"
    exit 1
fi

input_file="$1"
output_dir="${2:-./downloads}"

# Check if input file exists
if [ ! -f "$input_file" ]; then
    echo "Error: Input file '$input_file' not found"
    exit 1
fi

# Create output directory if it doesn't exist
mkdir -p "$output_dir"

# Read and process valid URLs into an array
urls=()
while IFS= read -r line || [[ -n "$line" ]]; do
    # Trim leading/trailing whitespace and remove CR characters
    trimmed_line=$(echo "$line" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | tr -d '\r')
    
    # Skip empty lines after trimming
    [[ -z "$trimmed_line" ]] && continue
    
    # Validate URL format
    if [[ "$trimmed_line" =~ ^https?:// ]]; then
        urls+=("$trimmed_line")
    else
        echo "Skipping invalid URL: $trimmed_line"
    fi
done < "$input_file"

total_urls=${#urls[@]}

if [[ $total_urls -eq 0 ]]; then
    echo "Error: No valid URLs found in input file"
    exit 1
fi

echo "Starting download of $total_urls files to $output_dir"
current=1

# Download each URL from the array
for url in "${urls[@]}"; do
    # Extract filename from URL or generate unique name
    filename=$(basename "$url")
    if [[ -z "$filename" || "$filename" =~ ^$ ]]; then
        filename="file_$(date +%s%N)_${current}.download"
    fi

    echo "[$current/$total_urls] Downloading $url"
    
    # Download with curl including error handling
    if ! curl -L --progress-bar --fail "$url" -o "$output_dir/$filename"; then
        echo "Warning: Failed to download $url"
        rm -f "$output_dir/$filename" 2>/dev/null
    fi
    
    ((current++))
done

echo "Download complete. Files saved to $output_dir"