Lecture 2 - Linux through the shell

Question 1

Windows and Linux both use what kind of kernel?

Answer 1

Monolithic

Question 2

Is the user interface in linux part of the operating system?

Answer 2

No - separate

Can be command line - shell

or gui - GNOME, KDE, Unity

Question 3

What is a shell?

Answer 3

A program on top of kernel

Provides basic human interface

text based command line interpreter

Question 4

How are shell, gui and kernel related?

Answer 4

Usually GUI and shell on top of kernel

used to be gui on shell on kernel

Question 5

What characters should not be used in filenames?

Answer 5

”.” at start

”-“ at start

spaces or control characters anywhere

Special characters

Question 6

What does the -a qualifier do with the ls command?

Answer 6

Includes hidden files (dotfiles)

Question 7

What is a bash script?

Answer 7

file containing line by line bash commands