how to give a directory full permissions linux code example
Example 1: linux give full permission to directory
# Change permissions for the root file/dir only
chmod 777 path/to/directory/
# Or
chmod 777 path/to/file
# Change permission for root dir and all files/dirs within
chmod -R 777 path/to/directory/
Example 2: debian give write permission
sudo chmod -R 757 /var/www