PowerShell Set-Variable Tutorial

PowerShell is complete programming or scripting language which provides different types of variables. The Set-Variable is used to set variable values or create a variable if it does not exist.

Set Variable

The Set-Variable can be used to set or create a variable easily. The -Name attribute is used to specify the variable name and -Value attribute is used to set the variable value. In the following example, we set the age variable value which is also created from scratch.

PS> Set-Variable -Name "age" -Value 38

Print Variable Value

The Get-Variable command can be used to print a variable value. The -Name attribute is used to specify the variable name.

PS> Get-Variable -Name "age"

Set Variable As Public

Variables are created as Private by default. But they can be created as public or private variables can be converted into the public using the -Visibility attribute In the following example we create the variable as public.

PS> Set-Variable -Visibility Public -Name "age" -Value 38

We can also convert existing variable visibility to the public like below.

PS> Set-Variable -Visibility Public -Name "age"

Set Variable As Private

We can also create or set variables as Private by using the -Visibility attribute. If the visibility of a variable is Private it is not listed as a variable.

PS> Set-Variable -Visibility Private -Name "age" -Value 38

Or we can convert the existing variable to private.

PS> Set-Variable -Visibility Private -Name "age" -Value 38

Set Variable Scope

The variable scope can be defined by using the -Scope attribute. The following scopes are provided.

  • Global
  • Local
  • Script
  • Private
PS> Set-Variable -Scope Global -Name "age" -Value 38

Set Variable Description

During heavy PowerShell usage, we may create lots of variables. We may need to get some description or hint about previously create variables. The -Description attribute is used to put some description about the variable.

PS> Set-Variable -Name "age" -Value 38 -Description "My age information"
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