command not found error (while trying align the LFW dataset)

[thoongee]

My computer is Ubuntu Linux.
I wrote below command to align the LFW dataset for validate on LFW.

for N in {1..4}; do

python /home/islab/facenet/src/align/align_dataset_mtcnn.py
/home/islab/facenet/datasets/lfw/raw
/home/islab/facenet/datasets/lfw/lfw_mtcnnpy_160
--image_size 160
--margin 32
--random_order
--gpu_memory_fraction 0.25
done

But there are some issues like below.

usage: align_dataset_mtcnn.py [-h] [--image_size IMAGE_SIZE] [--margin MARGIN]
[--random_order]
[--gpu_memory_fraction GPU_MEMORY_FRACTION]
[--detect_multiple_faces DETECT_MULTIPLE_FACES]
input_dir output_dir
align_dataset_mtcnn.py: error: the following arguments are required: input_dir, output_dir
bash: /home/islab/facenet/datasets/lfw/raw: Is a directory
bash: /home/islab/facenet/datasets/lfw/lfw_mtcnnpy_160: Is a directory
--image_size: command not found
--margin: command not found
--random_order: command not found
--gpu_memory_fraction: command not found

I checked that there are raw folder and lfw_mtcnpy_160 folder.
How can I align the LFW dataset correctly?