How to change text file extension type in Linux?

Question

Using gedit, I want to create a config.env file, how do I change the extension as simply naming it config.env doesn't work.

THanks in advance

Answer 1

It really doesn't matter what the file extension is, as long as it is in a linux machine. Just execute file <filename> to know the file type.

However you could try this:

Save the file as it is like config.txt or other and execute the below command

mv config.txt config.env