What are examples of shell builtins?

Here are some common examples of shell builtins:

1. cd - Changes the current directory.
2. echo - Displays a line of text or variable values.
3. export - Sets environment variables.
4. alias - Creates shortcuts for commands.
5. unset - Removes variables or functions.
6. set - Sets shell options or positional parameters.
7. pwd - Prints the current working directory.
8. history - Displays the command history.
9. jobs - Lists active jobs in the current shell session.
10. fg - Brings a background job to the foreground.

These commands are executed directly by the shell and do not require an external program to run.