[fish] Add function for interacting with iapetus

i3/.config/i3status/i3status.conf

@@ -12,8 +12,8 @@ order += "battery all"
 order += "disk /"
 order += "cpu_temperature 0"
 order += "load"
-order += "wireless _first_"
-order += "ethernet _first_"
+order += "wireless wlan0"
+order += "ethernet em0"
 order += "tztime local"
 
 volume master {
@@ -24,13 +24,13 @@ volume master {
     mixer_idx = 0
 }
 
-ethernet _first_ {
+ethernet em0 {
   # if you use %speed, i3status requires root privileges
   format_up = "%ip"
   format_down = "Eth down"
 }
 
-wireless _first_ {
+wireless wlan0 {
     format_up = " %essid %ip"
     format_down = "WiFi down"
 }