viu:tldr:d4cbc

This is a command that combines the "curl" and "viu" commands to display an online image in the terminal.

Here's the breakdown of the command:

1. "curl" is a command-line tool used to transfer data from or to a server. In this case, it is used to retrieve the data of an online image.

2. "-s" is an option for "curl" that stands for "silent mode." It prevents any progress or error messages from being displayed during the data transfer.

3. "${https:--example-com-image-png}" is the URL of the online image file. It's important to note that curly brackets and dollar sign are used to denote a variable in certain shells or script contexts. It's possible that this command is intended to use a variable containing the URL.

4. "|" is a pipe symbol that connects the output of one command to the input of another. It allows the output of "curl" to be passed to the next command "viu."

5. "viu" is an image viewer command-line tool that can display images in the terminal.

In summary, this command retrieves the data of an online image file using "curl" in silent mode and then passes that data to "viu" for display in the terminal. However, the specific functionality and success of this command may depend on the availability of the listed URL and the proper configuration of the environment it is executed in.