ls: Lists the contents of a directory, including files and other directories. You can use the -l flag for a detailed listing, or the -a flag to show hidden files.

cd: Changes the current directory. For example, to move to the /usr/share directory, you would use cd /usr/share.

pwd: Prints the full path of the current directory.

mkdir: Creates new directories. For example, to create a new directory named test, you would use mkdir test.

rm: Deletes files and directories. To delete a file named example.txt, you would use rm example.txt.

cp: Copies files and directories.

mv: Moves or renames files and directories.

top: Shows a real-time view of running processes and kernel-managed tasks in Linux. It also provides a system information summary.