How to Create Linux Powered MP3 file server using MySQL Amarok and ObsidianMusic

Posted on in Categories Linux, MySQL last updated December 21, 2007

Razvan talk about hooking Amarok to MySQL database server and create an MP3 file server. I this is an excellent hack:

When it comes to playing music in Linux, Amarok is one of the best audio players out there. It offers almost everything you need, from a clean, intuitive interface to a range of useful scripts. You can even put it on a server and give it a Web interface.

ObsidianMusic was previously known as amaroK Web Frontend. It is a collection of scripts that, combined with a MySQL database and the Amarok player, forms an excellent way of sharing MP3 files over the Internet or a small office network. All the music files in your collection can be played, downloaded, or streamed by a regular Web browser. Furthermore, ObsidianMusic offers search capabilities and music sorting, and can be customized using themes.

=> Create an MP3 file server using Amarok and ObsidianMusic

Howto Use SSH To Run Command On A Remote Machine

Posted on in Categories Automation, CentOS, Debian Linux, FreeBSD, Gentoo Linux, High performance computing, Howto, Linux, Shell scripting, Sys admin, Tuning, Ubuntu Linux, UNIX last updated August 17, 2007

This article examined a simple, but powerful, method to run commands on a remote machine using combination of ssh and a shell script:

Use Secure Shell (SSH) to run commands on remote UNIX systems and, with some simple scripts, put together a system that enables you to manage many systems simultaneously from one machine without having to log in directly to the machines themselves. Also examine the basics of a distributed management system and some scripts and solutions using the technique.

I have already covered how to execute commands on multiple Linux or UNIX servers via a shell script. The disadvantage of shell script is commands do not run in parallel on all servers. However, several tools exist to automate this procedure in parallel. With the help of tool called tentakel (highly recommended) , you run distributed command execution. Also, you can execute commands on multiple Linux or UNIX servers using special tools such as multixterm from expect project.

=> Distributed administration using SSH

Getting Yesterdays or Tomorrows Day With Bash Shell Date Command

Posted on in Categories Howto, Linux, Shell scripting, Tips, UNIX last updated June 17, 2007

When invoked without arguments, the date command displays the current date and time. Depending on the options specified, date will set the date and time or print it in a user defined way. I’ve seen many sysadmin writing perl scripts for calculating relative date such as yesterdays or tomorrows day. You can use GNU date command, which is designed to handle relative date calculation such as:

  • 1 Year
  • 2 Days
  • 2 Days ago
  • 5 Years