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?
@JordiGH I did not remember their meaning in detail, no.
But what do you think is wrong with the scheme you described? What would you change if you could?
@stsp I think:
Read: List names in that directory and read file contents, including metadata. This also allows cd'ing into that directory.
Write: Modify names in that directory and file contents, including metadata.
Exec: Allow executing files from that directory, or just do nothing.
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