$ python make_webshell.py [-t file_format_number] [-i input_file] <-o out_file>
-h, --help show this help message and exit
-t FILE_FORMAT_KEY, --type=FILE_FORMAT_KEY
-o OUT_FILENAME, --out=OUT_FILENAME
-i IN_FILENAME, --in=IN_FILENAME
Can feed file via pipe:
$ cat input_file | python make_webshell.py -o output.jpg -t 0