A Go terminal UI for displaying network adapters in real time
Programming Snapshot – termui
Article from Issue 218/2019
Even command-line lovers appreciate a classic terminal UI. Mike Schilli shows how to whip up a Go program that dynamically displays network interfaces and IPs.
Every time I connect my laptop to a router for diagnostic purposes, the question arises: On which dynamically assigned IP address will the router see the laptop? After all, you need to enter a router address on the same subnet to display the router's admin page (Figure 1).
Figure 1: This machine uses an IP address on subnet 192.168.147.1/24 to connect to the router.
To do this, I used to type ifconfig several times in a terminal window and extracted the desired address from the mess of data printed next to:
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