#!/bin/sh # pretty print active interfaces # 2021-04-24, LTu /sbin/ip a | /usr/bin/perl -Mstrict -wane ' BEGIN { printf "%s\n", "="x26 } printf "%-15s %10s\n%s\n", $&, $F[-1], "-"x26 if /\d{1,3}(\.\d{1,3}){3}/ '