Operating Systems and You: Becoming a Power User

Question 1

What is the CLI?

Answer 1

Command Line Interpreter

Question 2

What is Tab Completion?

Answer 2

Allows us to use the tab key to auto-complete file names or directories in the powershell/bash by beginning input at double tapping tab

Question 3

What is the main directory in a Linux file system called?

Answer 3

the Root Directory

Question 4

What are the 2 CLIs available in Windows?

Answer 4

Command Prompt: cmd.exe
PowerShell: powershell.exe

Question 5

The main directory in a Windows system is ______

Answer 5

The drive the file system is stored on (eg: c:\ )

Question 6

In powershell, what command lists the directories of the c drive?

Answer 6

c:\

Question 7

If you needed a description of a command in powershell, what would you type before the command?

Answer 7

Get-Help

Question 8

What powershell command shows hidden files during a directory search?

Answer 8

-force

eg:
ls -force c:\

Question 9

Which powershell command will tell you what directory you’re currently in?

Answer 9

pwd
(print-working directory)

Question 10

In order to change directory locations in powershell, what command is used?

Answer 10

cd followed by the path.
eg:

cd c:\Users\Name

Question 11

To go up one path level in a powershell directory, what is the command?

Answer 11

cd ..

Question 12

What is the powershell shortcut of the home directory?

Answer 12

cd ~

Question 13

What is the command in Bash and Powershell to create a new directory(folder)?

Answer 13

mkdir _____

(Underscores=chosen file name)

Question 14

In powershell, how do we work around not being able to use spaces in file or directory names?

Answer 14

either by ‘surrounding it with quotes’ or by following each word with a back tick, eg:

my’ file’ name’

Question 15

In Bash, how do we get around not being able to use spaces in file or directory names?

Answer 15

either with ‘quotations’, or by entering a backslash between words, eg:

mkdir my/ file/ name/

Question 16

How do we nagivate command history in powershell?

Answer 16

By typing in history, and hitting enter. Then we are able to scroll through commands with the up and down arrows

Question 17

What is the shortcut to search history in powershell?

Answer 17

cntrl and r keys, then searching

Question 18

How do we clear our text field in both powershell and bash for easier reading?

Answer 18

typing the clear command and hitting enter

Question 19

How do we open a list of directories in Bash?

Answer 19

ls/

Question 20

In a bash directory, what are:
bin
etc
home

Answer 20

bin= program file directory
etc = system configuration files
home = personal directory for users (documents, pictures etc)

Question 21

In a bash directory, what are:
proc
usr
var

Answer 21

proc = currently running processes
usr = user installed software
var = system logs or any constantly changing files

Question 22

In Bash, what command will show you all options and flags for any given command?

Answer 22

By typing –help after the command you need information about, eg:

ls –help

Question 23

How would you open the manual for a command in Bash?

Answer 23

By typing man before the command. (Known as man pages)

Question 24

What does the -l flag mean in Bash?

Answer 24

Long, you could use it to pull up a longer more detailed directory by typing:
ls -l/

Question 25

How would you search for hidden files in a Bash directory?

Answer 25

ls -a/
-a stands for all

Question 26

How would you identify a hidden file in Bash?

Answer 26

If the file name started with a period. EG:
.filename.txt

Question 27

What is the command to copy a file in powershell and Bash?

Answer 27

cp
eg:
cp filename.txt c:\Users\Documents

Question 28

What is a wildcard command?

Answer 28

Denoted by an asterix, you follow it with the parameter you would like applied to your file changes. eg:
cp * .jpg destinationpath

Question 29

Without using this command, the contents of a directory will not be changed during a command sequence

Answer 29

Recurse
-recurse in powershell
-r in Bash

Question 30

-verbose will output ________

Answer 30

one line per file

Question 31

To move a file, what is the command?

Answer 31

mv
eg:
mv ‘file name’ c:location

Question 32

To rename a file, what is the command?

Answer 32

mv
eg: ‘filename’ ‘newfilename’

Question 33

What is the command to delete files and directories?

Answer 33

rm

This immediately deletes though, no recycle bin purgatory for the item you use this command on!