From 356f6ff6b075a7370a30d2716c59c483a8cfa10e Mon Sep 17 00:00:00 2001
From: Joe Groocock <frebib@gmail.com>
Date: Tue, 4 Oct 2016 13:57:35 +0100
Subject: [PATCH] Should print down if the interface is empty (fixes displaying
 the docker IP address)

---
 .config/i3/blocks/iface | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.config/i3/blocks/iface b/.config/i3/blocks/iface
index 4d6ea2c..48e672e 100755
--- a/.config/i3/blocks/iface
+++ b/.config/i3/blocks/iface
@@ -32,7 +32,7 @@ fi
 
 #------------------------------------------------------------------------
 
-if [[ "$(cat /sys/class/net/$IF/operstate)" = 'down' ]]; then
+if [[ -z $IF ]] || [[ "$(cat /sys/class/net/$IF/operstate)" = 'down' ]]; then
     echo down # full text
     echo down # short text
     echo \#FF0000 # color