How do we interact with Linux Filesystem via 𝐟𝐢𝐥𝐞 𝐝𝐞𝐬𝐜𝐫𝐢𝐩𝐭𝐨𝐫𝐬?

How do we interact with Linux Filesystem via 𝐟𝐢𝐥𝐞 𝐝𝐞𝐬𝐜𝐫𝐢𝐩𝐭𝐨𝐫𝐬?