-ao (Overwrite mode) switch

Specifies the overwrite mode during extraction, to overwrite files already present on disk.

-ao[a | s | t | u ]

Přepínač	Popis
-aoa	Overwrite All existing files without prompt.
-aos	Skip extracting of existing files.
-aou	aUto rename extracting file (for example, name.txt will be renamed to name_1.txt).
-aot	auto rename existing file (for example, name.txt will be renamed to name_1.txt).

7z x test.zip -aoa

extracts all files from test.zip archive and overwrites existing files without any prompt.

Přepínače: -y (assume Yes on all queries)

7-Zip.cz