Update shell.py

shell.py

@@ -110,15 +110,15 @@ def main():
         elif inp == "ls":
             pclish_ls()
         elif inp == "mkdir":   
-            pclish_mkdir()
+            pclish_mkdir(dir)
         elif inp == "shtdwnsubsys":
             pclish_shtdwnsubsys()
         elif inp == "system":
             pclish_system()
         elif inp == "echo":
-            pclish_echo()
+            pclish_echo(txt)
         elif inp == "oscmd":
-            pclish_oscmd()
+            pclish_oscmd(ARGS)
         else:
             execute_command(inp)