Add bin/arch scripts

bin/arch/panel_notify.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/bash
+
+pgrep panel.sh >/dev/null || exit
+
+FIFO=/tmp/panel-fifo
+
+[[ -f $FIFO ]] || exit
+echo "$@" > "/tmp/panel-fifo"

bin/arch/volume.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+if [[ $# == 0 ]]
+then
+    echo "Usage: volume.sh [+|-|unmute|mute]"
+    exit 1
+fi
+
+COMMAND=$1
+case "$COMMAND" in
+    [+-])  amixer set Master 10%$COMMAND ;;
+    *mute) amixer set Master $COMMAND ;;
+    *)
+        echo "Invalid command"
+        exit 1
+        ;;
+esac
+
+# Report to lemonbar, if active
+if amixer get Master | grep '\[off\]' >/dev/null
+then
+    panel_notify.sh "V0"
+else
+    panel_notify.sh "V$(amixer get Master | sed -n 's/^.*\[\([0-9]\+\)%.*$/\1/p' | uniq)"
+fi