Command Line Basics

Question 1

What is a CLI?

Answer 1

command line interface

Question 2

What is a GUI?

Answer 2

graphical user interface

Question 3

Give at least one use case for each of the commands listed in this exercise.

man
cat
ls
pwd
echo
touch
mkdir
mv
rm
cp

Answer 3

man -  manual to look something up
cat - concatenate or print files
ls - list directory contents
pwd - print name of current directory
echo - display a line of text 
touch - change file timestamps
mkdir - make a directory
mv - move or rename files
rm - remove a file
cp - copy a file

Question 4

What are the three virtues of a great programmer?

Answer 4

laziness impatience hubris