sudo apt update
Updates the package list from repositories.
sudo apt upgrade
Upgrades all installed packages to the latest versions.
sudo apt install <package>
Installs a specific package.
sudo apt remove <package>
Removes an installed package.
ls -la
Lists all files and directories with detailed information.
cd <directory>
Changes the current directory.
pwd
Shows the current working directory.
cp source destination
Copies files or directories.
mv source destination
Moves or renames files or directories.
rm -r <directory>
Deletes a directory and its contents.
top
Displays real-time system processes and resource usage.
df -h
Shows disk space usage in a human-readable format.