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Linux File System and Commands Quiz

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#1

Which command is used to display the current working directory in Linux?

pwd
Explanation

Prints the current working directory.

#2

Which command is used to create a new directory in Linux?

mkdir
Explanation

Creates a new directory.

#3

Which command is used to display the contents of a file in Linux?

cat
Explanation

Displays the contents of a file.

#4

Which command is used to list all processes in Linux?

ps
Explanation

Lists all processes.

#5

What does the command 'uname -a' display in Linux?

Kernel version and system information
Explanation

Displays kernel version and system information.

#6

Which command is used to find and replace text in a file in Linux?

sed
Explanation

Finds and replaces text in a file.

#7

What is the purpose of the command 'head' in Linux?

To display the first few lines of a file
Explanation

Displays the first few lines of a file.

#8

Which command is used to display the manual of a command in Linux?

man
Explanation

Displays the manual of a command.

#9

What does the command 'ls -l' do in Linux?

Lists files in long format
Explanation

Lists files in long format.

#10

What is the purpose of the command 'chmod' in Linux?

To change file permissions
Explanation

Changes file permissions.

#11

Which command is used to search for a specific pattern in a file in Linux?

grep
Explanation

Searches for text patterns in a file.

#12

What is the purpose of the command 'grep' in Linux?

To search for text patterns
Explanation

Searches for text patterns.

#13

Which command is used to remove a directory in Linux?

rmdir
Explanation

Removes an empty directory.

#14

Which command is used to add a user to a group in Linux?

usermod
Explanation

Adds a user to a group.

#15

What does the command 'du' do in Linux?

Displays disk usage of files and directories
Explanation

Displays disk usage of files and directories.

#16

Which command is used to display the environment variables in Linux?

env
Explanation

Displays environment variables.

#17

What does the command 'chmod +x file.sh' do in Linux?

Makes the file executable
Explanation

Makes the file executable.

#18

Which command is used to rename a file in Linux?

mv
Explanation

Renames a file.

#19

What does the command 'ps aux' do in Linux?

Lists all processes
Explanation

Lists all processes.

#20

What is the purpose of the command 'tar' in Linux?

To create archives
Explanation

Creates archives.

#21

What does the command 'df' do in Linux?

Displays free disk space
Explanation

Displays free disk space.

#22

Which command is used to change the ownership of a file in Linux?

chown
Explanation

Changes the ownership of a file.

#23

Which command is used to change the priority of a process in Linux?

renice
Explanation

Changes the priority of a process.

#24

Which command is used to view a file's contents in real-time in Linux?

tail
Explanation

Views a file's contents in real-time.

#25

Which command is used to create a symbolic link in Linux?

ln
Explanation

Creates a symbolic link.

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