--- a/LINKS	Sat Mar 04 14:06:04 2017 +0000
+++ b/LINKS	Fri Mar 10 06:22:30 2017 +0000
@@ -15,4 +15,9 @@
 bash scripting
 
 https://likegeeks.com/bash-script-easy-guide/
-https://likegeeks.com/linux-bash-scripting-awesome-guide-part3/
\ No newline at end of file
+https://likegeeks.com/linux-bash-scripting-awesome-guide-part3/
+
+
+-------------------
+collatz
+http://codepen.io/benlorantfy/pen/KWzXoX
\ No newline at end of file