Add Transfer directories or binary files section

Usage.md

@@ -1,3 +1,37 @@
+## Transfer directories or binary files
+
+**Unencrypted**:
+
+**Upload**:
+```bash
+tar cvz ./data | base64 | curl -X POST --data-binary @- https://linedump.com
+```
+
+**Download**:
+```bash
+curl -s https://linedump.com/{paste_id} | base64 -d | tar xz
+```
+
+**Encrypted**:
+
+**Upload**:
+```bash
+tar cz ./data \
+  | openssl enc -aes-256-cbc -pbkdf2 -salt -base64 -pass pass:yourkey \
+  | curl -sS -X POST --data-binary @- https://linedump.com
+```
+
+**Download**:
+```bash
+curl -s https://linedump.com/{paste_id} \
+  | base64 -d \
+  | openssl enc -d -aes-256-cbc -pbkdf2 -pass pass:yourkey \
+  | tar xz
+```
+
+
+---
+
 ## Encryption with GPG
 
 _Replace `curl` with any other tool that can send HTTP POST requests. Example on Linux._