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We are team of computer science graduates, started this blog to share knowledge in easier terms.

CS Tutorials have content on different topics from computer science/information technology field.

Currently we are working on tutorials for HTML and PowerShell.

In coming days we will come up with tutorials on C, C++, SQL and more...


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Popular Posts

How to Import and Export Delimited Files, like CSV, in PowerShell

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In this tutorial, we will see how we can use PowerShell to import and export CSV file's data. Managing CSV Files using Import/Export-CSV in PowerShell We have two important cmdlets import-csv/export-csv which are widely used while working with CSV. Before moving to how to manage these type of files, First look at what is CSV file: A Comma Separated Values ( CSV ) file is a plain text file that contains a list of data. These files are often used for exchanging data between different applications. For example, databases and contact managers often support CSV files. A CSV file has a fairly simple structure. It’s a list of data separated by commas as you can see in below screenshot. We have file "email.csv" having email address and name separated by comma. You can use notepad/excel to open thses file. Now lets move back to our main topic, how to manage csv files with PowerShell.  Reading CSV Files with Import-Csv Importing of csv file is pretty straight forward. First move to
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PowerShell Arithmetic Operators

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In this tutorial we will see about PowerShell Arithmetic Operators and how PowerShell is dealing with them. Arithmetic operators are used to perform numeric calculations. As well as numeric calculations, the addition operator may also be used with strings, arrays, and hashtables. Multiplication operator may also be used with strings and arrays. Below is the list of PowerShell arithmetic operators. Operator Description Example + Adds numeric values 4 + 6 concatenates a string, arrays, and hash tables “CS” + “Tutorials” – Subtracts numeric values 4 – 2 Makes a number negative -98 * Multiple numeric values 4 * 2 copy string, arrays to the specified number of times “!” * 4 / Divides numeric values 4 / 2 % Gives remainder after division 7 % 3 For live demo, watch below video. I have demonstrated the use of PowerShell arithmetic operators by  creating calculator. Along with operators, Switch statement and While loop also used.  
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How to generate a GUID in PowerShell

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 If you ever need a unique id in your script, you can create GUID (globally unique identifier) In PowerShell 4.0 and earlier you can use [guid] class with its static method. In PowerShell 5.0 and later, you can use New-Guid cmdlet: You can use Get-Member to know its object type. You can also store GUID into a variable like below If you want to get GUID as string, use ToString  method or Guid  property. Both return output of string type, you can verify this using Get-Member .
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