Unix filesystem look up

Question

How to get the list of all the files and folders in the root dir including sub-folders and their files.

Answer 1

Try this (with Ewan's modification):

ls -R /

Answer 2

or this: find /

Answer 3

If you want to do it programmatically I'd recommend readdir() and opendir().

Answer 4

use find command eg

$ find /path -print

or if you have tree installed

$ tree /path

Answer 5

man find

In all seriousness though,

find / -maxdepth 2

That should show you the root directory, folders in /, and the contents of those folders. If you want the subdirectories of the subdirectories, use -maxdepth 3, and so on.