Directory (DIR):
The dir command is used to display a list of files and subdirectories within a specified directory. When you run this command without any arguments, it will show the contents of the current working directory.

Date:
The date command is used to display or set the system date in the Command Prompt.

Time:
The time command is used to display or set the system time in the Command Prompt.

Remark (REM):
The rem command is used to add comments within a batch file. Anything written after rem on the same line will be considered a comment and will not be executed.

Clear screen (CLS):
The cls command is used to clear the screen in the Command Prompt. It will remove all previous commands and output from the window.

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