Logstash getting started simple guide covering installation and a simple example.

Some git commands and tips

An example of using apache Ant to create a zip file and keep the root directory.

Execute linux/unix command in java.

Sample entrance code of rabbitmq java client.

How to pass testng command line arguments dynamically when Ant is used for invoking testng task.

With Jenkins “This build is parameterized” feature, we can dynamically pass testng parameters (i.e. test config or data input) through Ant.

Learn some basics of Ruby

Execute remote command from command line and playbook with ansible.

Quick steps of getting started with vagrant including installation, vm starting up and a few commonly-used commands.