Tag Archives: Implement

How to Implement Chef roles using Chef server ?

What is Role? A role is a way to define certain patterns and processes that exist across nodes in an organization as belonging to a single job function. Each role consists of zero (or more) attributes and a run-list. Each node can have zero (or more) roles assigned to it. When a role is run… Read More »

How to Execute external commands by using perl?

There are many ways to execute external commands from Perl. The most commons are: system function exec function backticks (“) operator open function All of these methods have different behaviour, so you should choose which one to use depending of your particular need. In brief, these are the recommendations: method use if … system() you… Read More »

How to Write Trigger in Perforce? – Perforce Triggers Guide

1 Introduction Perforce introduced the first server-side trigger in release 99.1 with the pre-submit trigger. This trigger satisfied a long-standing desire in the user community, but demand continued for more hooks. In release 2004.2, Perforce squarely hit the need with the addition of five new trigger types. Release 2005.1 adds yet one more trigger type… Read More »