Lock file and folder using cmd

 Lock file using below command:

F:\Ranjan>cacls my_test.txt  /p everyone:n

Are you sure (Y/N)?y                                                                                                                                                                                                                

processed file: F:\Ranjan\my_test.txt                                                                                                                                                                                                                                                                                                                                                                       

F:\Ranjan>   

Unlock file using below command:

F:\Ranjan>cacls my_test.txt  /p everyone:f

Are you sure (Y/N)?y                                                                                                                                                                                                                

processed file: F:\Ranjan\my_test.txt   

F:\Ranjan>

 Lock folder using below command:

F:\Ranjan>cacls my_folder  /p everyone:n

Are you sure (Y/N)?y                                                                                                                                                                                                                

processed dir: F:\Ranjan\my_folder                                                                                                                                                                                                                                                                                                                                                                      

F:\Ranjan>   

 Unlock folder using below command:

F:\Ranjan>cacls my_folder  /p everyone:f

Are you sure (Y/N)?y                                                                                                                                                                                                                

processed dir: F:\Ranjan\my_folder                                                                                                                                                                                                                                                                                                                                                                      

F:\Ranjan>