How do I read a text file value in PowerShell?

How do I read a text file value in PowerShell?

When you want to read the entire contents of a text file, the easiest way is to use the built-in Get-Content function. When you execute this command, the contents of this file will be displayed in your command prompt or the PowerShell ISE screen, depending on where you execute it.

How do I parse JSON in PowerShell?

Parse JSON Files Using PowerShell

  1. Downloading JSON Files in PowerShell.
  2. Use the Invoke-Request Command in PowerShell.
  3. Use the Invoke-RestMethod Cmdlet.
  4. Parsing JSON Files With PowerShell.
  5. Use the Invoke-WebRequest to Download the Filtered Object in PowerShell.

How do I open a big file in PowerShell?

Reading large text files with Powershell

  1. Get-Content.
  2. Get-Content -Raw.
  3. Get-Content -ReadCount.
  4. Switch -File.
  5. [System. IO. File]::ReadAllText()
  6. [System. IO. File]::ReadAllLines()
  7. [System. IO. File]::ReadLines()
  8. [System. IO. File]::OpenText(). readtoend()

How do I get the content of a variable in PowerShell?

The Get-Variable cmdlet gets the PowerShell variables in the current console. You can retrieve just the values of the variables by specifying the ValueOnly parameter, and you can filter the variables returned by name.

What is parsing in PowerShell?

PowerShell breaks the command into two tokens, Write-Host and book , and interprets each token independently using one of two major parsing modes: expression mode and argument mode. As PowerShell parses command input it tries to resolve the command names to cmdlets or native executables.

How do I edit a JSON file in PowerShell?

1 Answer

  1. $pathToJson = “F:\Path\To\JSON\file.json”
  2. $a = Get-Content $pathToJson | ConvertFrom-Json.
  3. $a.policies.’ Framework.DataContext’.connectionString = “Server=ServerName;Database=DateBaseName;Integrated Security=sspi2;”
  4. $a | ConvertTo-Json | set-content $pathToJson.

How do I import a file into PowerShell?

To import data from a text file into PowerShell we use Get-Content CmdLet. In the example above we read the text file and save the result in variable $computers that will be used later. The syntax is very simple we call Get-Content and provide value to the Path parameter where our text file has been located.

How do I read a PowerShell log file?

Use Select-String Cmdlet in PowerShell to View Contents of Log File. Summary: Use the Windows PowerShell cmdlet, Select-String, to view the contents of a log file.

How do I open a .txt file?

You can open a TXT file with any text editor and most popular web browsers. In Windows, you can open a TXT file with Microsoft Notepad or Microsoft WordPad, both of which come included with Windows. To open a TXT file with Notepad, select File → Open….

Can PowerShell parse text?

A task that appears regularly in my workflow is text parsing. It may be about getting a token from a single line of text or about turning the text output of native tools into structured objects so I can leverage the power of PowerShell….Regular Expressions.

Regex Description
a-d matches any of a , b , c , d

How do I parse XML in PowerShell?

Casting XML Strings to Objects Another way to use PowerShell to parse XML is to convert that XML to objects. The easiest way to do this is with the [xml] type accelerator. By prefixing the variable names with [xml] , PowerShell converts the original plain text XML into objects you can then work with.

How do I update a JSON object in PowerShell?


  1. Update JSON file using PowerShell.
  2. Github actions – pass secret variables to render ECS task definition action.
  3. Generate Swagger json at Build time.
  4. -Replace and regex in powershell.
  5. Create Logic Apps triggers dynamically using ARM.

How do I change the value of a JSON file?

First you would need to convert it to a JavaScript Object. Once it is an Object, then you can just use dot notation into the object to change the values that you want. Lastly, you would convert that JavaScript Object back into a JSON string.