import csv

input_file = 'controls.csv'  
output_file = 'controls-fix.csv' 

with open(input_file, mode='r', newline='', encoding='utf-8') as infile:
    reader = csv.DictReader(infile)
    
    safeguards = set()
    
    for row in reader:
        safeguard = row['CIS v8.1 Safeguards (Sub-Controls)']
        safeguards.add(safeguard)  

with open(output_file, mode='w', newline='', encoding='utf-8') as outfile:
    fieldnames = ['name']  
    writer = csv.DictWriter(outfile, fieldnames=fieldnames)
    
    writer.writeheader()
    
    for safeguard in safeguards:
        writer.writerow({'name': safeguard})

print(f"Conversion completed. The new CSV file is saved as '{output_file}'.")