Command Line

Question 1

What is a CLI?

Answer 1

command-line interface (CLI) to receive commands from a user in the form of lines of text and perform actions

Question 2

What is a GUI?

Answer 2

graphical user interface, is a form of user interface that allows users to interact with electronic devices through graphical icons and audio indicator such as primary notation, instead of text-based UIs, typed command labels or text navigation

Question 3

man

Answer 3

manual command an interface to the on-line reference manuals - man cat

Question 4

cat

Answer 4

concatenate command print contents of files or join files together. cat file.txt for example

Question 5

ls

Answer 5

list command - list contents of current working directory. ls

Question 6

pwd

Answer 6

print working directory that is being used. pwd > i-was-here.txt to create

Question 7

echo

Answer 7

to print a string. echo ‘Hello, World!’. echo ‘Hello, World!’ > hello.txt

Question 8

touch

Answer 8

modify a timestamp. Commonly, the utility is used for file creation. touch tag-youre-it.txt. touch .gitkeep parent/child/grandchild/ touch snoot/boop.txt

Question 9

mkdir

Answer 9

make a new directory. Mkdir parentfolde. mkdir -p parent/child/grandchild

Question 10

mv

Answer 10

rename/move directory. mv pokiemans pokemon

Question 11

rm

Answer 11

remove directory. rm lol.txt. rm -r kill-me/

Question 12

cp

Answer 12

copy directory. cp and-then.txt no-and-then.txt

Question 13

What are the three virtues of a great programmer?

Answer 13

laziness impatience hubris