7za:tldr:e5c47

This command is using the 7za utility to create an encrypted 7z archive file. Let's break it down:

• 7za: This is the command for the 7-Zip command-line utility.
• a: This is a flag for the "add" operation, indicating that we want to create an archive.
• ${path-to-encrypted-7z}: This is the path and filename for the new encrypted 7z archive file. You should replace ${path-to-encrypted-7z} with the desired path and filename of the encrypted archive.
• -p${password}: This is a flag for specifying the password for the encrypted archive. You should replace ${password} with the desired password.
• -mhe=${on}: This is a flag to enable the "header encryption" feature. ${on} is a variable that should be replaced with a value like on or true to enable this feature.
• ${path-to-archive-7z}: This is the path and filename of the source files or directory that you want to compress and add to the 7z archive. You should replace ${path-to-archive-7z} with the desired source files or directory.

Overall, this command will create an encrypted 7z archive file with the specified password, enabling header encryption and including the files/directory specified in ${path-to-archive-7z}.