Linux for DevOps Interview Questions

Question: Write a Linux command to list all files and directories in the current directory.
 Answer: ls
 

Question: How would you create a new directory named "my_project" in the home directory of the current user?
 Answer: mkdir ~/my_project
 

Question: Write a command to display the contents of a text file named "example.txt" on the terminal.
 Answer: cat example.txt
 

Question: How can you move a file named "file.txt" from the current directory to a directory named "destination"?
 Answer: mv file.txt destination/
 

Question: Write a command to copy a directory and its contents ("my_folder") from one location to another, preserving permissions and timestamps.
 Answer: cp -r my_folder/ destination/
 

Question: How would you remove a file named "obsolete.txt" from the current directory?
 Answer: rm obsolete.txt
 

Question: Write a command to list all running processes on the system.
 Answer: ps aux
 

Question: How can you find all files in the current directory and its subdirectories with the ".log" file extension?
 Answer: find . -name "*.log"
 

Question: Write a command to check the disk space usage of all mounted filesystems.
 Answer: df -h
 

Question: How would you archive a directory named "my_data" into a compressed tarball named "my_data.tar.gz"?
 Answer: tar -czvf my_data.tar.gz my_data/