How to open file with default application in cmd?

I'm trying to open a file in it's default editor after the user has created the file. So far my script is:

@echo off
@echo --- Create A New File ---
@echo -
@echo Where should we put the new file?
set /p fileLocation=@ %UserProfile%\
@echo -
@echo What do you want to call your new file?
set /p开发者_开发知识库 fileName=@ 
@echo -
@echo Almost Done! What is the files extension?
set /p extension=@ .
@echo -
copy NUL "%UserProfile%\%fileLocation%\%fileName%.%extension%"

(ignore the extra echos and '@' those are just for fun)

After I click the file, it does the command: Choose Location > Choose File Name > Choose File extension. I'm almost done on what I want but theres one last thing. How can I get the file name that I created and then open in its default text-editor?

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You can use start to open the file with the associated application.

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Resources :

• Open a File in the Default Application using the Windows Command Line (without JDIC) (waybackmachine capture from Oct 30, 2010)

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In windows you can use start (http://ss64.com/nt/start.html).

start "" "%UserProfile%\%fileLocation%\%fileName%.%extension%"

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You can also use explorer.exe/explorer to open the file (e.g. explorer file.txt). This also works nicely if you use WSL, especially with an alias like alias open="explorer.exe" so you can just call it like, e.g., open file.txt.

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I achieved the correct way of FILE ASSOCIATION using these cmd commands. this is just an example:

REG ADD "HKEY_CLASSES_ROOT\Applications\notepad++.exe\shell\open\command" /v @ /t REG_SZ /d "\"C:\\Program Files\\Noteepad++\\notepad++.exe\" \"%1\"" /f
REG ADD "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.txt" /v "Application" /t REG_SZ /d "notepad++.exe" /f
REG ADD "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.txt\OpenWithList" /v "g" /t REG_SZ /d "notepad++.exe" /f

assoc .txt=MyCustomType
ftype MyCustomType="C:\Program Files\Noteepad++\notepad++.exe" "%1"

(it's better to put them in .bat file)