Added example cli script for file obfuscation

file_obf.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+
+from argparse import ArgumentParser
+from getpass import getpass
+from pathlib import Path
+
+from obf import obf
+
+
+if __name__ == "__main__":
+    argp = ArgumentParser()
+    argp.add_argument("input", help="Input file", type=Path)
+    argp.add_argument("output", help="Output file", type=Path)
+    argp.add_argument("-d", "--decrypt", help="Decrypt", action="store_true")
+    argp.add_argument("-i", "--iterations", help="Iterations (default: 4)", type=int, default=4)
+    argp.add_argument("-p", "--processes", help="Parallel processes (default: 4)", type=int, default=4)
+    args = argp.parse_args()
+    assert args.processes > 0
+    key = getpass("Key: ").encode()
+    with args.input.open("rb") as i:
+        with args.output.open("wb") as o:
+            o.truncate(0)
+            o.seek(0)
+            o.write(
+                obf(i.read(), key, decrypt=args.decrypt, iterations=args.iterations, processes=args.processes)
+            )
+            o.flush() # for good measure