How to encrypt txt files with AES256 via Windows 7z command line?
Solution 1:
To make the answer simple just use the switch -p which means Set Password with the default encryption which is AES.
The example below will encrypt the file or folder and prompt for a password:
7z a -p Zip_File_Name File_2_zip.txt
The following example will auto add the password to the file for you.
7z a -pPassword Zip_File_Name.7z File_2_Zip.txt
The other switches used above are:
7z a -p -mhe=on Zip_File_Name.7z File_2_Zip.txt
-pPassword == Auto add password without being prompted
-mhe=on == Means to encrypt the file names in archive too.