Mac change folder permissions recursively
Lightburn test files
tar keeps permissions, ownership and directory structure intact, but converts everything into a stream of bytes. You run a "subshell" (the parenthesized commands) that change directory, and then get tar to reverse the conversion. A steam of bytes becomes directories and files with correct ownership and permissions.
Check out how to change permissions for files, folders, and disks, and determine who can view data on the computer. Plus, learn the easy way to control what Every item on your Mac, whether it's a file or folder, has a set of permissions. Those determine who can view and modify data on your computer.