update README

README.md

@@ -11,7 +11,24 @@ $ . venv/bin/activate
 $ pip install -r requirements.txt
 ```
 
-Using
+Usage
 -----
-Edit `self.server = 'http://paste.r4sas.i2p/'` in `pbincli/transports.py` to your server.
+1. Edit `self.server = 'http://paste.r4sas.i2p/'` in `pbincli/transports.py` to your server.
-Run inside `venv` command `python pbincli.py send`. It will send string `Test!` to PrivateBin.
+2. Run inside `venv` command 
+
+	$ python pbincli.py send -c "Hello!"
+
+It will send string `Hello!` to PrivateBin.
+
+To send file use `--file` or `-f` with filename. Example:
+
+	$ python pbincli.py send -c "My document" -f info.pdf
+
+To retrieve paste from server, use `get` command with paste info.
+It must be formated like `pasteID#passphrase`. Example:
+
+	$ python pbincli.py get 49eeb1326cfa9491#vfeortoVWaYeJlviDdhxQBtj5e0I2kArpynrtu/tnGs=
+
+More info you can find by typing
+
+	$ python pbincli.py {send,get} -h

pbincli/actions.py

@@ -15,6 +15,14 @@ def path_leaf(path):
 
 
 def send(args):
+    if args.comment:
+        text = args.comment
+    elif args.file:
+        text = "Sending file to you!"
+    else:
+        print("Nothing to send!")
+        sys.exit(1)
+
     passphrase = b64encode(os.urandom(32))
     if args.debug: print("Passphrase:\t{}".format(b64encode(passphrase)))
     if args.password:
@@ -25,11 +33,6 @@ def send(args):
         password = passphrase
     if args.debug: print("Password:\t{}".format(password))
 
-    if args.comment:
-        text = args.comment
-    else:
-        text = "Sending file to you!"
-
     if args.file:
         check_readable(args.file)
         with open(args.file, "rb") as f: