pip:tldr:a98c2

This command is used in the context of Python programming, specifically when installing and managing dependencies for a Python project.

Explanation:

• pip is a package manager for Python that allows you to install, uninstall, and manage Python packages and libraries.
• freeze is a command provided by pip that displays all currently installed packages in the system.
• The > is a redirection operator in the command line interface (CLI) that redirects the output of a command to a file instead of displaying it on the console.
• ${requirements-txt} is a placeholder for the path and name of a file where you want to store the output.

In summary, the command pip freeze > ${requirements-txt} collects a list of all installed Python packages and saves them to a file named requirements.txt. The requirements.txt file is commonly used to define project dependencies, making it easier for others to install and run the project with the same package versions.