PowerShell Script selecting for particular value [duplicate] - powershell

Question

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Powershell script value fetching
(2 answers)
Closed 5 years ago.
How to get a particular value in PowerShell display ?
Example - When I execute below script I get 6 values i need to get only 4th row value.
Command:
Get-WmiObject win32_logicaldisk -Filter "Drivetype=3
Output:
DeviceID : C:
DriveType : 3
ProviderName :
FreeSpace : 183760687104
Size : 255791026176
VolumeName :
I need to fetch only "183760687104" value. How to achieve it. Also I do not want to have FreeSpace tag also. Just plain value "183760687104".

Answer 1

You just access the field by name:
(Get-WmiObject Win32_LogicalDisk -Filter "Drivetype=3").FreeSpace
Note that Get-WmiObject is deprecated, you should be using Get-CimInstance instead.
(Get-CimInstance Win32_LogicalDisk -Filter "Drivetype=3").FreeSpace
If you want to save the value in a variable, just assign it:
$freespace = (Get-CimInstance Win32_LogicalDisk -Filter "Drivetype=3").FreeSpace
and then you can use $freespace as you wish. Be careful though as on a system with more than one local disk your expression will return an array of values rather than just a single one, so you may want to subscript the result to choose only the first disk. Either of these expressions will be sure to give you a single number:
PS C:\Users\User> (Get-CimInstance Win32_LogicalDisk -Filter "Drivetype=3").FreeSpace[0]
94229651456
PS C:\Users\User> (Get-CimInstance Win32_LogicalDisk -Filter "Drivetype=3")[0].FreeSpace
94239125504
If you are ever in doubt about the accessible fields on an object, just pipe the expression through gm (short for Get-Member):
Get-CimInstance Win32_LogicalDisk -Filter "Drivetype=3" | gm
will list all available fields.
PS C:\Users\User> Get-CimInstance Win32_LogicalDisk -Filter "Drivetype=3" | gm
TypeName: Microsoft.Management.Infrastructure.CimInstance#root/cimv2/Win32_LogicalDisk
Name MemberType Definition
---- ---------- ----------
Clone Method System.Object ICloneable.Clone()
Dispose Method void Dispose(), void IDisposable.Dispose()
Equals Method bool Equals(System.Object obj)
GetCimSessionComputerName Method string GetCimSessionComputerName()
GetCimSessionInstanceId Method guid GetCimSessionInstanceId()
GetHashCode Method int GetHashCode()
GetObjectData Method void GetObjectData(System.Runtime.Serialization.SerializationInfo info, Sys...
GetType Method type GetType()
ToString Method string ToString()
Access Property uint16 Access {get;}
Availability Property uint16 Availability {get;}
BlockSize Property uint64 BlockSize {get;}
Caption Property string Caption {get;}
Compressed Property bool Compressed {get;}
ConfigManagerErrorCode Property uint32 ConfigManagerErrorCode {get;}
ConfigManagerUserConfig Property bool ConfigManagerUserConfig {get;}
CreationClassName Property string CreationClassName {get;}
Description Property string Description {get;}
DeviceID Property string DeviceID {get;}
DriveType Property uint32 DriveType {get;}
ErrorCleared Property bool ErrorCleared {get;}
ErrorDescription Property string ErrorDescription {get;}
ErrorMethodology Property string ErrorMethodology {get;}
FileSystem Property string FileSystem {get;}
FreeSpace Property uint64 FreeSpace {get;}
InstallDate Property CimInstance#DateTime InstallDate {get;}
LastErrorCode Property uint32 LastErrorCode {get;}
MaximumComponentLength Property uint32 MaximumComponentLength {get;}
MediaType Property uint32 MediaType {get;}
Name Property string Name {get;}
NumberOfBlocks Property uint64 NumberOfBlocks {get;set;}
PNPDeviceID Property string PNPDeviceID {get;}
PowerManagementCapabilities Property uint16[] PowerManagementCapabilities {get;}
PowerManagementSupported Property bool PowerManagementSupported {get;}
ProviderName Property string ProviderName {get;}
PSComputerName Property string PSComputerName {get;}
Purpose Property string Purpose {get;}
QuotasDisabled Property bool QuotasDisabled {get;}
QuotasIncomplete Property bool QuotasIncomplete {get;}
QuotasRebuilding Property bool QuotasRebuilding {get;}
Size Property uint64 Size {get;}
Status Property string Status {get;}
StatusInfo Property uint16 StatusInfo {get;}
SupportsDiskQuotas Property bool SupportsDiskQuotas {get;}
SupportsFileBasedCompression Property bool SupportsFileBasedCompression {get;}
SystemCreationClassName Property string SystemCreationClassName {get;}
SystemName Property string SystemName {get;}
VolumeDirty Property bool VolumeDirty {get;}
VolumeName Property string VolumeName {get;set;}
VolumeSerialNumber Property string VolumeSerialNumber {get;}
PSStatus PropertySet PSStatus {Status, Availability, DeviceID, StatusInfo}