checkoverlap.py

# Load files and store their lines as sets
files = ['/home/marthijnvd/master/docs/generated_configs/proftpd_25.conf',
          '/home/marthijnvd/master/docs/generated_configs/proftpd_52.conf',
            '/home/marthijnvd/master/docs/generated_configs/proftpd_57.conf',
              '/home/marthijnvd/master/docs/generated_configs/proftpd_74.conf',
                '/home/marthijnvd/master/docs/generated_configs/proftpd_81.conf']
sets = []
for filename in files:
    with open(filename, 'r') as f:
        sets.append(set(line.rstrip('\n') for line in f))

# Print difference between each pair
with open('differences.txt', 'w') as out:
    for i in range(5):
        for j in range(i+1, 5):
            difference = sets[i] - sets[j]
            out.write(f"Lines in {files[i]} but not in {files[j]}: {len(difference)} items\n")
            if difference:
                out.write("Different lines:\n")
                for line in sorted(difference):
                    out.write(f"{line}\n")
                out.write("\n")