command line basics

Question 1

What is a CLI?

Answer 1

Command Line Interface: Applications executed thru command line

Question 2

What is a GUI?

Answer 2

Graphical User Interface: Visible user-friendly presentation of applications

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: Find manual for commands
• cat: Show or concatenate files
• ls: List all files and directories
• pwd: Find directory you are in
• echo: Show something in form of text
• touch: Create files
• mkdir: Create folders
• mv: Move or rename files
• rm: Remove files and directories
• cp: Copy files, directories, and recursively copy either

Question 4

What are the three virtues of a great programmer?

Answer 4

Laziness: Reduce effort
Impatience: Write programs that react to you
Hubris: Write with quality