[Linux] Improved pavolume command

dotfiles/lib/shellenv/linux.sh

@@ -4,7 +4,13 @@ pasink () {
 	pacmd list-sinks | grep '* index' | get_cols ' -1'
 }
 
-pavolume () {
-	pactl list sinks | grep '^[[:space:]]Volume:' | \
-    head -n $(( $(pasink) + 1 )) | tail -n 1 | sed -e 's,.* \([0-9][0-9]*\)%.*,\1,'
+pasink() {
+    pacmd stat | awk -F": " '/^Default sink name: /{print $2}'
+}
+
+pavolume () {
+    pacmd list-sinks |
+        awk '/^\s+name: /{indefault = $2 == "<'$(pasink)'>"}
+            /^\s+volume: / && indefault {print $5; exit}'
+
 }