5. Unlocking SQLite's Power: How to Run and Exit Queries on the Command Line
   Shell (or command line) is a text-based interface that allows you to interact with your operating system by typing commands
6. Example Codes:
   You want to run MySQL commands from a bash script, but including the password directly in the script poses a security risk
7. Example Codes for Checking Database Existence in PostgreSQL:
   PostgreSQL: This is a powerful open-source relational database management system.Shell: This is a command-line interface that allows you to interact with the operating system and run programs
8. Exporting SQLite Data to CSV: A Shell Script Approach
   SQLite: A lightweight, self-contained relational database management system (RDBMS) that stores data in a single file.Shell: A command-line interface (CLI) that allows users to interact with the operating system and execute programs
9. Example Codes for Secure Password Handling with pg_dump (Bash)
   Methods to Avoid (Security Risks):Command-Line Arguments: NEVER pass the password directly as an argument to pg_dump. This exposes the password in your shell history and process listings