1 example for setfacl

{{ score }}
  # Give a user rwx permissions on the current directory using ACL
sudo setfacl -m u:username:rwx .

# Give a group rwx permissions on the current directory using ACL
sudo setfacl -m g:mygroup:rwx .

# Set default permissions (when a new file is created, it will
# have these permissions)
sudo setfacl -d -m u:username:rwx .

# Set ACL permissions recursively
sudo setfacl -R -m u:username:rwx .