1.11 Linux

Question 1

ls

Answer 1

Lists directory contents of files and directories

Question 2

pwd

Answer 2

Displays the full pathname of the current directory

Question 3

cd

Answer 3

Changes directories

Question 4

mv

Answer 4

Move files from one location to another

Question 5

cp

Answer 5

Copy files from one location to another

Question 6

rm

Answer 6

Permanently deletes files, groups of files, directories or directory trees

Question 7

Which three commands are used in both files and directories?

Answer 7

mv, cp, rm

Question 8

df

Answer 8

Displays amount of free disk space

Question 9

du

Answer 9

Estimates file space usage

Question 10

nano

Answer 10

Easy to use command line text editor

Question 11

vi

Answer 11

Old command that supports modal editing

Question 12

vim

Answer 12

Supports normal, visual, insert, and command line mode
(Upgraded vi)

Question 13

pico

Answer 13

Text editor that provides less features and less complexity

Question 14

cat

Answer 14

Used to create, view, or concatenate files

Question 15

find

Answer 15

Searches file system or directory

Question 16

grep

Answer 16

Perform text searches for a defined criteria of words or strings

Question 17

su

Answer 17

Allows you to execute commands as another user

Question 18

sudo

Answer 18

Allows access to restricted files and operations

Question 19

usermod

Answer 19

Change the properties of a user in Linux through the command line

Question 20

userdel

Answer 20

Deletes a user account and related files

Question 21

passwd

Answer 21

Change user passwords

Question 22

groupadd

Answer 22

Add a new group

Question 23

groupmod

Answer 23

Modify a group

Question 24

groupdel

Answer 24

Delete a group

Question 25

chmod

Answer 25

Control file access permissions

Question 26

chown

Answer 26

Change user/group ownership of files, directories or symbolic links

Question 27

apt-get

Answer 27

Package management tool to install and remove software on Debian

Question 28

yum

Answer 28

Used to install and remove software on Red Hat

Question 29

dnf

Answer 29

Updated version of yum command and used to install and remove software on Red Hat

Question 30

rpm

Answer 30

Open source program for installing, uninstalling, and managing software packages in Linux

Question 31

ps

Answer 31

Displays list of currently running processes

Question 32

top

Answer 32

Task manager that is used to display information about CPU and memory

Question 33

ip

Answer 33

Used for configuring network interfaces

Question 34

ping

Answer 34

Used to test a host’s reachability on an IP-based network

Question 35

traceroute

Answer 35

Used to display the route and transmit time across an IP-based network

Question 36

dig

Answer 36

Used to query the DNS to get information about the different DNS records

Question 37

man

Answer 37

Used for accessing and searching online reference manuals

Question 38

–help

Answer 38

Written after the name of a command to give information on how to use a specific command

Question 39

Samba

Answer 39

Cross-platform file sharing protocol that supports the SMB

Question 40

Name the Linux scheduling service

Answer 40

cron

Question 41

gzip

Answer 41

Compression tool for reducing the size of a file. Consists of a GNU header and deflated data

Question 42

What should you install on a Linux device to communicate with a Windows host/server?

Answer 42

Samba