Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base

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DevOps Series – Automation with Puppet – Part2

What Is Configuration Management? Configuration management is a broad term, that relates to products and software. In the information technology/ operations world, configuration management can imply OS configuration, application management and deployment, and product management. Configuration management can be defined as the process that maintains consistency...

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Devops series – Automation with Puppet – Part1

 Overview If you are managing more than a dozen Linux systems, configuration management is a must. Without configuration management, updating system configuration files and deploying applications can become very challenging. This crash course is about using Puppet configuration management software to deploy and support Linux systems in...

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What problems will Puppet Solve ?

DevOps: A very popular term now a days in IT industry which includes new revolutionary approach and tools like Jenkins, Travis, Chef, Ansible, Cfengine, Mesos, AWS, OpenStack, Dockers and many many more. Puppet is also one of the most popular tool used in the DevOps approach...

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Bash Scripting – Redirecting output in scripts

You can use the STDOUT and STDERR file descriptors in your scripts to produce output in multiple locations simply by redirecting the appropriate file descriptors. There are two methods for redirecting output in the script: Temporarily redirecting each line Permanently redirecting all commands in the script...

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Bash Scripting – Reading user inputs

Although providing command line options and parameters is a great way to get data from your script users, sometimes your script needs to be more interactive. Sometimes you need to ask a question while the script is running and wait for a response from the person...

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Bash Scripting – using shift command

Another tool you have in your bash shell tool belt is the shift command. The bash shell provides the shift command to help you manipulate command line parameters. The shift command literally shifts the command line parameters in their relative positions. When you use the shift...

 
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