jc:tldr:3d7df

This command is using a syntax that is not commonly used in most scripting languages. However, I can make an educated guess based on the available information.

${ifconfig} likely represents a placeholder for the execution of the ifconfig command, which is used to configure network interfaces in Unix-like systems. In this case, it is probably meant to display information about the network interfaces on the system.

The | symbol is called a pipe and is used to redirect the output of one command to serve as the input of another command. So, the output of the ifconfig command is being piped to the next part of the command.

jc is likely the name of a command or a script that processes and formats the output of the ifconfig command. Since this is not a commonly known command, it could be a custom script or an alias set up by the user. The purpose of this command is to parse the output of ifconfig in a structured format.

${--ifconfig} is unclear without more context. It might be an argument or an option for the jc command/script. Again, without more information or further definition of the command, it is not possible to provide a more detailed explanation.

Overall, based on the limited information provided, it seems like the command is executing ifconfig to get network interface information, then processing and formatting that output using the jc command/script with potential arguments or options included after ${--ifconfig}.