Linux rapid fire

As I have mentioned earlier, I am in the process of writing Linux quiz app. So...

Let us see how familiar you are with Linux operating system

1. Linux is an ———
2. In Linux the ——- user has permissions to access all files.
3. The command to display all files in current folder is ——-
4. The command to delete all files is ——-
5. ——- in file name represents user’s home directory.
6. The command to display the current directory is ——-
7. Bash is a ————-
8. Grub is ———-
9. An executable file in Linux must have an extension of .exe. True or false?
10. The command file shows the content of the file specified. True or false?

All questions are basic. Let us see how many of these you could answer.