readded udpated scripts directory

scripts/scriptbc

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# scriptbc--Wrapper for 'bc' that returns the result of a calculation
+# this script was taken from the Wicked Cool Shell Scripts book, page 35
+
+if [ "$1" = "-p" ] ; then
+    precision=$2
+    shift 2
+else
+    precision=2 # Default
+fi
+
+bc -q -l << EOF
+    scale=$precision
+    $*
+    quit
+EOF
+
+exit 0