Command Lines

Question 1

What is a CLI?

Answer 1

Command Line Interface. Examples are windows powershell, terminal for mac, git bash.

Question 2

What is a GUI?

Answer 2

Graphical User Interface. Example is VS Code. For the end users to use, but have limited functionality compared to a CLI.

Question 3

man

Answer 3

The command line for pulling up the manuals for commands

Question 4

cat

Answer 4

cat is used to concatentate files and print them out on the standard output. head and tail commands preview a file from head or tail

Question 5

ls

Answer 5

ls is used to list the directory contents

Question 6

pwd

Answer 6

pwd is used to print name of the current/working directory

Question 7

echo

Answer 7

echo is used to display a line of text on the CLI and can be used to save text to a new file

Question 8

touch

Answer 8

touch is used to change file timestamps and to create new files

Question 9

mkdir

Answer 9

mkdir is used to make directories. also used to make multiple directories within each other (parent,child)

Question 10

mv

Answer 10

mv is used to move files but can also rename the files

Question 11

rm

Answer 11

rm is used to remove files or directories

Question 12

cp

Answer 12

cp is used to copy files and directories

Question 13

What are the three virtues of a great programmer?

Answer 13

Laziness, Impatience, Hubris.