choice:tldr:6a301

The command choice /m "${message}" is used in command-line scripting on Windows operating systems. It prompts the user by displaying a message specified by the variable ${message} and waits for the user to respond with a valid choice.

Here's a breakdown of the command:

• choice: It is the executable command that waits for the user input.
• /m "${message}": It is an option for the choice command to display a prompt message to the user. The text inside the ${message} variable gets shown to the user to provide instructions or ask a question.

For example, if the value of ${message} is "Do you agree?", the command will display a prompt like this:

Do you agree? [Y,N]?

The user will then be expected to enter a valid choice of either 'Y' or 'N'. Once the user makes a selection, the command proceeds based on the user's response. Usually, this command is used in conjunction with an if statement or stored in a variable for further processing.