Print Current Login User Information (Challenge)

# Introduction

We will execute SQL statements in MySQL client to print the current login user information. The `CURRENT_USER` function retrieves the current login user information, and the `SYSTEM_USER` function retrieves the system user information. Our objective is to write SQL statements to display both pieces of information on the screen and save them to a file named `currentUser.sql`. The file will be stored in the `/home/labex/project` directory.