HTML uppercase to lowercase

convert_html_case.sh

#!/bin/bash

# Check if directory is provided
if [ -z "$1" ]; then
    echo "Usage: $0 <directory>"
    exit 1
fi

DIRECTORY="$1"

# Find all HTML files in the given directory
find "$DIRECTORY" -type f -name "*.html" | while read -r file; do
    echo "Processing $file..."
    
    # Use sed to convert HTML tags to lowercase
    sed -i.bak -E 's/<\/?[A-Z][^>]*?>/\
    $(echo "&" | tr "[:upper:]" "[:lower:]")/g' "$file"

    # Handle self-closing tags like <IMG />
    sed -i.bak -E 's/<([a-z]+)([^>]*)\/>/\
    <\1\2 \/>/g' "$file"

    # Cleanup backup files created by sed
    rm "${file}.bak"
done

echo "All HTML files processed."