LinuxNavigatingFiles

Question 1

What file stores user account information in Linux?

Answer 1

/etc/passwd

Question 2

What file stores hashed passwords for users?

Answer 2

/etc/shadow

Question 3

What command shows the currently logged-in user?

Answer 3

whoami

Question 4

What command shows all users currently logged in?

Answer 4

who or w

Question 5

What does the ‘su’ command do?

Answer 5

Switches user (defaults to root if no username is given)

Question 6

What does ‘sudo’ allow you to do?

Answer 6

Run a command with superuser (root) privileges

Question 7

How do you return to a previous user or session?

Answer 7

exit

Question 8

What is the root directory in Linux?

Answer 8

/

Question 9

What directory contains user personal folders?

Answer 9

/home

Question 10

Where are configuration files stored?

Answer 10

/etc

Question 11

What directory contains essential user commands?

Answer 11

/bin

Question 12

Where is user-installed software and libraries located?

Answer 12

/usr

Question 13

What directory contains logs and mail?

Answer 13

/var

Question 14

Which directory is used for temporary files?

Answer 14

/tmp

Question 15

What is the home directory for the root user?

Answer 15

/root

Question 16

Where are device files located?

Answer 16

/dev

Question 17

Which directory contains virtual system information like CPU?

Answer 17

/proc

Question 18

What command shows the current directory?

Answer 18

pwd

Question 19

What command changes to the /etc directory?

Answer 19

cd /etc

Question 20

What does ‘cd ~’ do?

Answer 20

Goes to the home directory

Question 21

How do you move up one level in the directory?

Answer 21

cd ..

Question 22

What does ‘ls’ do?

Answer 22

Lists files in a directory

Question 23

What does ‘ls -l’ show?

Answer 23

Lists files with details

Question 24

What does ‘ls -a’ show?

Answer 24

Lists all files including hidden ones

Question 25

What command creates an empty file?

Answer 25

touch filename

Question 26

How do you create a new directory?

Answer 26

mkdir directoryname

Question 27

How do you copy a file?

Answer 27

cp source destination

Question 28

How do you rename or move a file?

Answer 28

mv oldname newname

Question 29

What command deletes a file?

Answer 29

rm filename

Question 30

What command deletes a directory and its contents?

Answer 30

rm -r directoryname

Question 31

What command prints the whole file content?

Answer 31

cat filename

Question 32

How do you view file content one page at a time?

Answer 32

less filename

Question 33

Which command shows the first 10 lines of a file?

Answer 33

head filename

Question 34

Which command shows the last 10 lines of a file?

Answer 34

tail filename

Question 35

What is an absolute path?

Answer 35

A full path starting from the root (e.g., /etc/passwd)

Question 36

What is a relative path?

Answer 36

A path based on your current location

Question 37

What does 'chmod' do?

Answer 37

Changes file permissions

Question 38

What does 'chown' do?

Answer 38

Changes file ownership

Question 39

What do the first three permission characters represent?

Answer 39

Owner permissions

Question 40

What does 'r' mean in file permissions?

Answer 40

Read

Question 41

What does 'w' mean in file permissions?

Answer 41

Write

Question 42

What does 'x' mean in file permissions?

Answer 42

Execute

Question 43

What does 'df -h' show?

Answer 43

Disk usage in human-readable format

Question 44

What does 'du -sh' show?

Answer 44

Folder size in human-readable format

Question 45

What does 'lsblk' show?

Answer 45

Lists all drives and partitions

Question 46

What does 'fdisk -l' do?

Answer 46

Lists drive partitions (requires sudo)

Question 47

What command is used to SSH into a remote system?

Answer 47

ssh user@ip_address

Question 48

What command securely copies files to a remote system?

Answer 48

scp file user@host:/path

Question 49

How can you learn more about a command?

Answer 49

man command

Question 50

What is tab completion useful for?

Answer 50

Speeds up typing commands and paths