Final answer:
This question cannot be answered with a simple true or false. The 'mysql' command does start the MySQL client, and '<' is used to redirect the content of a file into MySQL, but additional context is needed to determine if the usage is correct.
Step-by-step explanation:
The question is asking whether starting a terminal session and running the command mysql is true or false. This appears to be a test of understanding how the MySQL command line works. The answer to this cannot be a simple true or false because 'mysql' is indeed a command used to start the MySQL client in a terminal, allowing the user to interact with MySQL databases. However, the part '<' would typically be followed by a filename which means the shell would redirect the content of that file into the MySQL command. This is used to execute SQL queries that are saved in a file directly into the MySQL server. It seems like there is some context missing, as the student might want to know if the syntax is correct or if this command will achieve a specific action.