How can I check the folder permissions in ubuntu server 12.04?

Question

Right now, I know that I can change permissions for example with:

sudo chmod 550 directory

I wonder how I can check the actual folder permission.

Answer 1

You can use the following command:

ls -l directory

or

stat directory

or, if you want to see only the permissions in numeric (octal) format:

stat -c %a directory

Answer 2

"Destination folder is not writable or does not exists."

on Magento 2.3.1 admin on NGINX Ubuntu 16.04 | AWS Ec2

Solution I Found

cd /var/www/html/pub/media

sudo find . -type d -exec chmod 777 {} \;

add media folder to permissions