How to best display read and read/write permissions in a table

1. Does write permission include read?
2. How to give write permission to a folder in Linux for a specific user?
3. How do I check user privileges in Linux?

Does write permission include read?

So no, a write permission does not imply read. Another example might be a directory where the user can deposit data (potentially destroying existing data), but not read what others have deposited.

How to give write permission to a folder in Linux for a specific user?

To change file and directory permissions, use the command chmod (change mode). The owner of a file can change the permissions for user ( u ), group ( g ), or others ( o ) by adding ( + ) or subtracting ( - ) the read, write, and execute permissions.

How do I check user privileges in Linux?

Using sudo command

sudo is probably the most important privilege that you need to check. You can use sudo -l command to check all the commands currently logged In user can run. If you see output like below i.e (ALL:ALL) ALL then it means you have unlimited access and you are almost capable of running any command.