What is the purpose of Target in Get-ItemProperty of powershell-CodePudding

I am wondering what's the purpose of Target? If the type of Target is hash, how to set the key/value.

PS Set-ItemProperty -Path a.txt -Name Target -Value { "key1":"value1"}
At line:1 char:58
  Set-ItemProperty -Path a.txt -Name Target -Value { "key1":"value1"}
                                                           ~~~~~~~~~
Unexpected token ':"value1"' in expression or statement.
      CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
      FullyQualifiedErrorId : UnexpectedToken

CodePudding user response：

As for your post title:

What is the purpose of Target in Get-ItemProperty of powershell

Use Get-Member to find out.

(Get-ItemProperty -Path 'D:\temp\ZenMusic.mp3' | 
Get-Member) -match 'Target' | 
Format-List

# Results
<#
TypeName   : System.IO.FileInfo
Name       : Target
MemberType : CodeProperty
Definition : System.Collections.Generic.IEnumerable`1[[System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]] 
             Target{get=GetTarget;}
#>

As you can see, there is no setter for this property.

CodePudding user response：

The purpose of the Target parameter in the Set-ItemProperty cmdlet is to specify the path and file name of the item to be modified. It is typically used to set or modify the values of properties for a file, registry key, or other item.

In the example you provided, it looks like you are trying to set the Target property to a hash table with the key "key1" and the value "value1". However, the syntax for defining a hash table in PowerShell is incorrect in the example.

To set the Target property to a hash table with the key "key1" and the value "value1", you would use the following syntax:

Set-ItemProperty -Path a.txt -Name Target -Value @{ "key1" = "value1" }

Alternatively, you could use the following syntax to define the hash table inline:

Set-ItemProperty -Path a.txt -Name Target -Value @{ "key1" = "value1"; "key2" = "value2" }

In this syntax, the keys and values of the hash table are separated by the equals sign (=), and the key-value pairs are separated by semicolons (;).