How to archive with 7-zip only new files in a Windows directory?

Question

Data archiving

I use this batch file on Windows:

@echo off

set source="D:\test"
set destination="D:\test"
set passwd="Qwerty"
set dd=%DATE:~0,2%
set mm=%DATE:~3,2%
set yyyy=%DATE:~6%
set curdate=%dd%-%mm%-%yyyy%

"C:\Program Files\7-Zip\7z.exe" a -ssw -mx9 -p%passwd% %destination%\backup_%curdate%.7z %source% -sdel

The problem with this script:
- create a 1.txt
batch file, there is a 7z archive in which test \ 1.txt - create a
2.txt batch file, there is
a 7z archive in which the test \ 1.txt, 2.txt files and the where test\1.txt
How to finish this script so that in the D:\test directory, when starting the batch file, it only affects what it did not archive (for me it still compresses as much as possible and encrypts with a password) or possibly excludes 7z archives. I tried the key "-r0 *.7z", but then the batch file stops working.

Answer 1

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