In this example, the demo file is copied to another file (demo_file1.txt), and the same search for ‘this’ is done on both files. Checking for the given string in multiple files. Select-String actually returns an object, and the matching lines are found in a property called ‘Line’, so using Select-Object with the ExpandProperty parameter I can tell PowerShell to only show the contents of the ‘Line’ property. If we want to get the exact same output as the Grep command in the first example, we could do the following: Notice also that Grep matches using case sensitivity, and since Select-String is case insensitive by default, I have to use the -CaseSensitive parameter (abbreviated to -ca in the command). This line is the 1st lower case line in this file.Īs you see, Select-String defaults to showing you the name of the file and the line number where a match was found. In this example, the article shows how you would use Grep to search for a string in a single file. Search for the given string in a single file In PowerShell, the command used for string matching is of course Select-String, but since these examples are meant to be run in the console, I will be using the default alias ‘ sls‘. This is not meant to be a grep vs Select-String (or Linux vs Windows), but look at it as an introduction to Select-String if you are familiar with grep already. I recently ran across an article about ‘ 15 Practical Grep Command Examples In Linux/Unix‘, and thought it would be cool to run through each of the examples, and give the PowerShell equivalent for each one. How to reload the PowerShell console session.Download NuGet packages from PowerShell.How to add a progress bar to your PowerShell script.Quick tip: ConvertTo-Json and line breaks in strings.Quick tip: Dynamically create and use variables.
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