From 02873a5c93ac5204311cb0dcd3db3753c29a3fc0 Mon Sep 17 00:00:00 2001
From: David Phillips <david@sighup.nz>
Date: Thu, 20 Apr 2017 17:00:56 +1200
Subject: Add shebang and doc to grab-spot

---
 local/bin/grab-spot | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/local/bin/grab-spot b/local/bin/grab-spot
index d116252..989d037 100755
--- a/local/bin/grab-spot
+++ b/local/bin/grab-spot
@@ -1,3 +1,14 @@
+#!/bin/sh
+
+# Grabs a spot price for a currency and stores it in ~/.cache
+# Useful to run as a cron job and use its cached output in motds or status
+# lines
+#
+# syntax: grab-spot TO FROM
+# for example, to get the value of USD in NZD:
+#     grab-spot USD NZD
+# would place a file at ~/.cache/USDNZD containing the value of the USD in NZD,
+# to 4 decimal places
 
 if [ -z $1 ]; then
 	logger "$0: blank FROM currency"
-- 
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