HOW TO SOLVE

 How to Change Ownership of a Folder (Ubuntu & CentOS 7.9) To change the ownership of a folder and all its contents: sudo chown -R [new_owner]:[new_group] /path/to/directory Example: sudo chown -R apache:apache /var/www/html This command works the same on both Ubuntu and CentOS 7.9. ⚠️ Disclaimer: For educational use only. Use at your own risk. We are not responsible for any issues or misuse. Apply under professional supervision.

 I am start learning Linux and  update every day on this page. UBUNTU 18.4    sudo apt update sudo apt upgrade 3rd ster : sudo apt auto remove Note: whenever upgrade command run must require to run the command of " sudo apt autoremove".  reboot command : to fix any upgrade use : sudo apt --fix-broken install To know your user name : whoami > TO ZOOM TERMINAL  CTRL+SHIFT+ “+” > TO ZOOM OUT TERMINAL  CTRL+SHIFT+ “-”    Uninstall Googlechrome sudo apt purg google-chrome-stable remove the "google chrome " folder /home/username/ .config rm -rf /home/username/.config/google-chrome also remove the "google chrome" folder /home/username/ .cache rm -rf /home/username/.cache/google-chrome  startup error of Ubuntu  To know the step click the video link below: link : to make directory use command : mkdir How to add host name:  sudo nano /etc/hostname  how to add hosts: sudo nano /etc/hosts Install vim sudo apt instal...