Merge pull request #7 from stmuk/master

ulimit options are bash specific.  Fix when user shell isn't bash.

run.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 source /home/camelia/perl5/perlbrew/etc/bashrc
 ulimit -u 80
 ulimit -v 1048576