redesignde the unix-like system directory

[kindu smith]

Borrowing android and freebsd just to keep it simple:

/app, application directory, various system-level applications
/boot,  boot directory, set up ABI, API, EFI, kernel, modules and other
directories to store complete microkernel boot source code, interface,
EFI partition information, modules.
/cloud, various cloud applications
/data,  database, such as key, web page data
/help,  operating system manual
/net,  network information and server information, etc.
/system , store the file system hierarchy (FHS) directory
/user,  user directory, set user account and information