tracepath:tldr:0163c
The command "tracepath" is used to trace the route that packets take to reach a particular destination, similar to the "traceroute" command. The "-l" flag specifies the length of the packets that will be sent during the tracepath operation.
In the command "tracepath -l ${packet_length} ${host}", the "${packet_length}" is a placeholder for a specific value that you need to provide. It determines the length (in bytes) of the packets that will be sent during the tracepath operation. You should replace "${packet_length}" with an actual number, such as 64 or 1500, depending on your specific requirements.
The "${host}" is also a placeholder that needs to be replaced with an actual string or IP address representing the destination host you want to trace the path towards.
Overall, this command will trace the route towards the specified host, sending packets of a specified length, showing the network hops (routers) along the way.