diff --git a/stonks b/stonks
old mode 100755
new mode 100644
index 9623fc2..15f1f4e
--- a/stonks
+++ b/stonks
@@ -1,9 +1,32 @@
 #!/bin/bash
 
+#Copyright (C) 2020 Hesham Banafa
+
+#This file is part of stonks.
+
+#    stonks is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    any later version.
+#
+#    stonks is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with stonks.  If not, see <https://www.gnu.org/licenses/>.
+
 #cli interface to track TASI profolio
 # 19 Aug 2020 - H.B
 
 version=0.1-alpha
-version_msg="stonks version $version"
+version_msg="stonks $version"
 echo "$version_msg"
 
+#check jq
+if ! command -v jq &> /dev/null
+then
+	echo "Can't find jq (json)"
+	exit 1
+fi