rich:tldr:1a6c4

This command is using the "rich" library in Python to display the content of a file in a paginated format.

Here's a breakdown of the command:

• ${filename-py}: This is a placeholder for the name of the file you want to display. The -py suffix suggests that the file is a Python file, but this could be replaced with the appropriate file extension.

• --pager: This flag indicates that the output should be displayed in a paginated manner, which means that the content will be shown page by page rather than all at once. This is useful for files with a large amount of content so that it can be viewed more easily.

When the command is executed, it will open the specified file (${filename-py}) using the "rich" library and display its content in a paginated format.