How to create Dockerfile in command prompt

Tried to create Dockerfile but not working.I am getting below the error.

Error:

If i tried in command prompt:

C:UsersadminD1>touch Dockerfile
'touch' is not recognized as an internal or external command,
operable program or batch file.

If i tried in VS Code terminal:

PS C:UsersadminD1> touch Dockerfile
touch : The term 'touch' is not recognized as the name of a cmdlet, function, script file, or operable    
program. Check the spelling of the name, or if a path was included, verify that the path is correct and   
try again.
At line:1 char:1
+ touch Dockerfile
+ ~~~~~
    + CategoryInfo          : ObjectNotFound: (touch:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

How to resolve this issue?

Source: Docker Questions