C'est la même que pour /tmp, pour permettre à tout le monde de créer des fichiers mais interdire à utilisateur1 de supprimer les fichiers d'utilisateur2.
In addition to the three sets of three permissions listed above, a
file's permissions have three special components, which affect only
executable files (programs) and, on some systems, directories:
[...]
3. prevent users from removing or renaming a file in a directory
unless they own the file or the directory; this is called the
"restricted deletion flag" for the directory. For regular files
on some systems, save the program's text image on the swap device
so it will load more quickly when run; this is called the "sticky
bit".
[^] # Re: Zut, j'ai validé... :-)
Posté par Frédéric Perrin (site web personnel) . En réponse au message ACLs à la Windows. Évalué à 9.
In addition to the three sets of three permissions listed above, a
file's permissions have three special components, which affect only
executable files (programs) and, on some systems, directories:
[...]
3. prevent users from removing or renaming a file in a directory
unless they own the file or the directory; this is called the
"restricted deletion flag" for the directory. For regular files
on some systems, save the program's text image on the swap device
so it will load more quickly when run; this is called the "sticky
bit".