Read perms let you list the filenames in the directory but nothing else (e.g.. not contents of files nor metadata like size or file owners).
Write perms let you add/delete/rename files in that directory, but only if exec perms are also present.
Exec perms let you read or write to files that already exist in a directory, but not list the names nor change the names. Hope you already know the filename you're after.
@JordiGH Why not?
C'mon, there must be a reason. It must be one of those little bugs that grew up to be a big and strong independent feature, like dotfiles being hidden.
@stsp I'm guessing it's due to some peculiarity of how inodes were first implemented.
Also, please tell me that you had to remember how directory permissions work, because I always think I know how and then get confused by weird directory modes like 0300, 0200, or 0600.
A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes.
\) for inline LaTeX, and
\] for display mode.