What is the DOS command to update?

The recharge / update terminal can be used to import new environment variables (such as% PATH%) if they were changed outside of CMD (for example, by a third-party program or the built-in Windows route editor) or to load a set of new Commands that were created with the doskey command.

CMD does not have a real function to be recharged as Linux / GNU / Mac terminals, etc.
One solution to reload CMD is to open a new CMD and close the previous one.

the following script of a line should help:

start cmd && quit

Code (marked):

Now all you need to do is save this line in a file called reload.cmd or reload.bat (up to your personal preferences) and save it in a directory listed in% path%, for example. C: / Windows / System32

Now you can reload your CMD by typing reload. :)