It may be worthwhile to force all files under a specific directory to have the same user and group. You can do that using the sticky flag.


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Especially for web servers (where the web server and application server may run under different users, and to complicate, the CLI user may also run under a different user),
it may be worthwhile to force all files under a specific directory to have the same user group. You can do that using the sticky flag.


sudo chmod g+s ~/my_dir
// change existing ownership
chown -R www-data:www-data ~/my_dir