October 2016 – POFTUT

Monthly Archive: October 2016

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Awk Print Tutorial With Examples

Awk is a stream type programming language. Awk can edit given text ant provided new text according to instructions. We will look popular usages of Awk in this  tutorial. There are alternative awk implementations like below Nawk Gawk Awk Syntax Awk is line oriented so by default provided text is...

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Linux ls Command Tutorial With Examples

Linux operating system provides a lot of different functionalities with different tools and commands. ls is the most used command in linux. ls is the arm and leg of Linux system administrator. ls provides a lot of different functionalities with different options. Man ls Man page of ls command can be retrieved like below.

List...

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How To Determine Installed Powershell Version?

Powershell provides different features according to its version. Here knowing the version of the PowerShell become a necessity. There are different methods to get version of Powershell from easy to hard. PowerShell Versions Also PowerShell is updated with the Windows Update but following lines provides information about the PowerShell versions...

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How To Access MySQL Database From Java Applications?

Java is popular programming language generally used commercial and enterprise applications. MySql is popular database too which is used big service providers like Google, Facebook etc. Most of the applications generally uses data and needs to store this data in a relational database. MySQL is generally the first choice if...

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Html Text Input Allow Only Numeric Input

Applications expecting numeric values for the input is generally a pain for developers. Because we have to check given values whether they are number or alphabet. We have some text input element for html. We want to get the number of the person. How can we achieve that easily? Pure...

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How To Get Query String From Url With Javascript?

Query string is part of URL. After question mark query string begins with simple key-value pairs. Popular JavaScript frameworks provide libraries to get query string with JavaScript. But how can we get it with pure JavaScript without using any JavaScript framework? getParameterByName() Function First we create a function to to...

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How To Create Snapshot of KVM / Libvirt / Qemu Vm?

KVM  is a hyper visor used by a lot of Linux distributions. I am currently using it and very happy with it. I have most of the abilities paid hypervisors like HyperV, Vmware provides. Snapshots is picture of the VM in specified time. For example we will install new application...

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