This example visualizes the network interface state changes prescribed by a shell script that fixes OpenVPN/Tunnelblick’s “Can’t assign requested address” error. The visualization shows the sequence of `sudo ifconfig en1 down`, `route flush`, and `ifconfig en1 up` commands as a flow diagram, using the script’s raw text as its data source. It renders the command arguments as labeled nodes connected by arrows, with the network interface (`en1`) highlighted as the primary target. The code relies on `d3.forceSimulation` for node positioning and `d3.select` with `attr` and `text` methods to draw the graph, directly mapping the script’s lines to visual elements.