languages	products	page_type	name	urlFragment	description
csharp	dotnet	sample	.NET Core parallel grep sample	parallel-programming-grep-cs	A .NET Core console application that implements grep functionality across a file system using PLINQ.

.NET Core parallel grep sample

The sample source code is a .NET Core Console application written in C#, that implements "grep" functionality across a file system using PLINQ.

Sample prerequisites

This sample is written in C# and targets .NET Core 3.1. It requires the .NET Core 3.1 SDK.

Types and members in use

The sample source code uses the following types and members:

• ThreadLocal
• .AsParallel()
• .AsOrdered()
• .WithMergeOptions(ParallelMergeOptions.NotBuffered)

Building the sample

The source code includes an MSBuild project file for C# (a .csproj file) that targets .NET Core 3.1. After you download the .zip file containing the example code, create a directory and select Download ZIP to download the sample code files to your computer. To build the example:

1. Download the .zip file containing.
2. Create the directory to which you want to copy the files.
3. Copy the files from the .zip file to the directory you just created.
4. If you are using Visual Studio 2019:
   1. In Visual Studio, select Open a project or solution (or File > Open > Project/Solution from the Visual Studio menu.
   2. Select Debug > Start Debugging from the Visual Studio menu to build and launch the application.
5. If you are working from the command line:
   1. Navigate to the directory that contains the sample.
   2. Type in the command dotnet run to build and launch the application.