Update file create venv file.txt

create venv file/create venv file.txt

@@ -14,6 +14,8 @@ Git command meaning:
     
 vs code remote ssh connecting error on raspberry pi:
     sudo rm -r .vscode* ( This command remove vs code server to RPI.)
+This is linux cmd:
+    rm -f ~/ .ssh/known_hosts ( warning remot host identification has changed delete old known_hosts.)
 
 Activate This Venv File:
     source iotcloud/bin/activate