Unit 3: Linux Command - Pre-Test

What does the 'ls' command do in Linux?

• List the contents of a directory

• Delete a file

• Change the working directory

• Create a directory

How can you change to the parent directory using a command?

• pwd ..

• ls ..

• cd ..

• mkdir ..

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

• mv

• rm

• cat

• mkdir

What is the purpose of the 'mkdir' command?

• Create a directory

• Move a directory

• List directory contents

• Delete a directory

How do you show the working directory?

• pwd

• ls

• mv

• cd

Which command is used to delete (remove) a file?

• rm

• cp

• mv

• touch

What does the 'rmdir' command do?

• Create a new directory

• Delete an empty directory

• List directory contents

• Rename a directory

Which command is used to encrypt a file?

• mkdir

• gpg -c

• file

• rm

How can you terminate a process using a command?

• ps

• grep

• kill

• su

What does the 'grep' command do?

• Change user ID

• Terminate a process

• Show processes running in the system

• Search for strings in a file