we

config/xmobar/scripts/volume.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+# Get the maximum volume of any pulseaudio sink channel
+# amixer get Master | egrep -o "[0-9]+%"
+vol=$(amixer get Master | awk -F'[]%[]' '/%/ {if ($7 == "off") { print "MM" } else { print $2 }}' | head -n 1)
+
+echo Vol: $vol%
+
+exit 0

config/xmobar/xmobarrc

@@ -12,7 +12,7 @@ Config {
    -- layout
    , sepChar =  "%"   -- delineator between plugin names and straight text
    , alignSep = "}{"  -- separator between left-right alignment
-   , template = "%StdinReader% | %battery% | %multicpu% | %memory% }{ %date% | %kbd% %_XMONAD_TRAYPAD%" 
+   , template = "%StdinReader% | %battery% | %multicpu% | %memory% }{ %vol% | %date% | %kbd% %_XMONAD_TRAYPAD%" 
 
    -- general behavior
    , lowerOnStart =     True    -- send to bottom of window stack on start
@@ -62,6 +62,8 @@ Config {
                              , "--high"     , "darkred"
                              ] 10
 
+        , Run Com "/home/sako/.config/xmobar/scripts/get-volume.sh" [] "vol",
+
         -- cpu core temperature monitor
         , Run CoreTemp       [ "--template" , "Temp: <core0>°C|<core1>°C"
                              , "--Low"      , "70"        -- units: °C