Command Line Crash Course

Question 1

What does the “rm -rf” command do in PowerShell and when should you use it?

Answer 1

It deletes one or more items and should never be used.

Question 2

PowerShell command: pwd

Answer 2

print working directory

Question 3

PowerShell command: hostname

Answer 3

my computer’s hostname

Question 4

PowerShell command: mkdir

Answer 4

make directory

Question 5

PowerShell command: cd

Answer 5

change directory

Question 6

PowerShell command: ls

Answer 6

list directory

Question 7

PowerShell command: rmdir

Answer 7

remove directory

Question 8

PowerShell command: pushd

Answer 8

push directory

Question 9

PowerShell command: popd

Answer 9

pop directory

Question 10

PowerShell command: cp

Answer 10

copy a file or directory

Question 11

PowerShell command: robocopy

Answer 11

robust copy: efficiently copy or transfer multiple files (up to 1M?)

Question 12

PowerShell command: mv

Answer 12

move a file or directory

Question 13

PowerShell command: more

Answer 13

page through a file

Question 14

PowerShell command: print

Answer 14

print the whole file

Question 15

PowerShell command: forfiles

Answer 15

run a command on loots of files

Question 16

PowerShell command: dir -r

Answer 16

find files

Question 17

PowerShell command: select-string

Answer 17

find things inside files

Question 18

PowerShell command: help

Answer 18

read a manual page

Question 19

PowerShell command: helpctr

Answer 19

find what man page is appropriate

Question 20

PowerShell command: echo

Answer 20

print some arguments

Question 21

PowerShell command: set

Answer 21

export/ set a new environment variable

Question 22

PowerShell command: exit

Answer 22

exit the shell

Question 23

PowerShell command: runas

Answer 23

DANGER! become super user root DANGER!

Question 24

Technology Stack

Answer 24

A collection of elements (or items), in this case, technology elements