Rename wal to sbg

sbg

@@ -0,0 +1,19 @@
+#!/usr/bin/sh
+
+# Script:       sbg
+# License:      MIT
+# Author:       Arkaprabha Chakraborty
+# Created:      28-07-23
+# Dependencies: feh, dunstify
+#
+# Copyright (C) 2023 Arkaprabha Chakraborty
+
+PROG=feh           # program
+NOTIPROG=dunstify  # program
+FLAGS=--bg-fill    # program flags
+WALL=$1            # original image
+REST=$HOME/.bg     # duplicate image
+
+cp $WALL $REST     # make a copy
+$PROG $FLAGS $REST # set background
+$NOTIPROG "Set as background" -a $PROG -u "low" -t "2000" -I $WALL