#!/bin/bash

IF_LIST=($(ip l \
  | egrep '^[0-9]+:\s+(eth|en|wl)' \
  | sed -r 's/^[0-9]+:\s+(\w+):.*/\1/' \
  | sort))

# Reset conkyrc to default
rm "${HOME}/.conkyrc"
cp "${HOME}/.conkyrc_base" "${HOME}/.conkyrc"

# Add interfaces to conkyrc
for i in "${IF_LIST[@]}"; do
  if [[ "${i:0:1}" == "e" ]]; then
    sed -i -r "s/#Network/Wired:\${alignr}\${addr $i}\n#Network/" $HOME/.conkyrc
  else
    sed -i -r "s/#Network/Wireless:\${alignr}\${addr $i}\n#Network/" $HOME/.conkyrc
  fi
done

# Remove '#Network' line to prevent duplicating lines if this script is re-run
sed -i -r "s/#Network//" $HOME/.conkyrc

# vim: sts=2 sw=2 ts=2