Linux

Question 1

Linux command used for listing file system objects (similar to the dir command in Windows)

Answer 1

ls command

Question 2

Linux command used to print the current directory

Answer 2

pwd command

Question 3

Linux command used to change the directories

Answer 3

cd command

Question 4

Linux command used to move files from one location to another

Answer 4

mv command

Question 5

Linux command used to copy files from one location to another

Answer 5

cp command

Question 6

Linux command used to delete files

Answer 6

rm command

Question 7

Linux command used to display the amount of free disk space

Answer 7

df command

Question 8

Linux command used to estimate the file space usage

Answer 8

du command

Question 9

Linux easy to use command line text editor

Answer 9

nano

Question 10

Old command that supports model editing

Answer 10

vi command

Question 11

Linux command that supports normal, visual, insert, and command line mode (updated version of the vi command)

Answer 11

vim command

Question 12

Text editor that provides less features and less complexity

Answer 12

pico

Question 13

Linux command used to create, view, or concatenate files

Answer 13

cat command

Question 14

Linux command used to search the file system or directory

Answer 14

find command

Question 15

Linux command used to search for a string of characters within a specified file using regular expressions

Answer 15

grep command

Question 16

Linux command used to switch users from the currently logged in user to another one in order to execute commands as that user

Answer 16

su command

Question 17

Linux command used to switch to the root user in order to be able to execute commands using the root user’s privileges

Answer 17

sudo

Question 18

Linux command used to create a new user

Answer 18

useradd command

Question 19

Linux command used to modify the user’s account

Answer 19

usermod command

Question 20

Linux command used to delete a user’s account

Answer 20

userdel command

Question 21

Linux command used to change or reset the password of the user’s account

Answer 21

passwd command

Question 22

Linux command used to add a new group

Answer 22

groupadd

Question 23

Linux command used to modify a group

Answer 23

groupmod

Question 24

Linux command used to delete a group

Answer 24

groupdel

Question 25

Linux command used to change the access permissions

Answer 25

chmod

Question 26

Linux command used to change the owner

Answer 26

chown

Question 27

Linux command used to install and remove software on Debian

Answer 27

apt-get

Question 28

Linux command used to install and remove software on Red Hat

Answer 28

yum

Question 29

Linux command that is an updated version of the yum command and used to install and remove software on Red Hat

Answer 29

dnf

Question 30

Linux command that is a low level tool that is used to install and remove software on older Red Hat

Answer 30

rpm

Question 31

Linux command used to display a list of currently running processes (process status)

Answer 31

ps command

Question 32

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

Answer 32

top command

Question 33

Linux command used for configuring network interfaces

Answer 33

ip command

Question 34

Linux command used to test a host’s reachability on an IP-based network

Answer 34

ping command

Question 35

Linux command used to display the route and transmit time across an IP-based network

Answer 35

traceroute

Question 36

Linux command used to query the DNS to get information about the different DNS records

Answer 36

dig command

Question 37

Linux command used for accessing and searching online reference manuals

Answer 37

man command

Question 38

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

Answer 38

–help command

Question 39

A cross-platform file sharing protocol that supports the SMB (Server Message Block)

Answer 39

Samba