Query shared folder free space

Shay Levi

> That one doesn't work in either PS or GWPS (CTP 2)

I tested it on:

1. W3K + PoSH v1
2. XP SP2 + PoSH CTP
3. Vista SP1 + PoSH CTP2

All worked with no errors. What do you get for $size.groups (do you have
a d:\ drive)?


---
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

> "Shay Levi" <no@addre.ss> wrote in message
> news:89228ed22e2718ca92ea64716d76@news.microsoft.c om...
>> Hi Robert,
>>
>> I can't find any good explanation why named groups names are not
>> available on $size.
>>
> It appears to be a difference between using the GWPS and PS (CTP 2).
> I couldn't reproduce my problem symptom in the normal shell.
>
>> Btw, they are also avaiable using the Item member:
>>
>> #http://msdn.microsoft.com/en-us/library/hchbwda2.aspx
>> PS > $dir = & cmd /c dir d:\
>> PS > $size = [regex]::match($dir[-1],'\)\s+(?<size>(\d+,?)+)\sbytes')
>> PS > $size.groups.item("size").value
>> 6,010,818,560
> That one doesn't work in either PS or GWPS (CTP 2)
>
> In both I get this error message:
>
> $size.groups.item("size").value
> You cannot call a method on a null-valued expression.
> At line:1 char:18
> + $size.groups.item <<<< ("size").value
>> Another alternative would be to use the -match operator. That way
>> named groups become available as members on $matches:
>>
>> PS > $dir = & cmd /c dir d:\
>> PS > $dir[-1] -match '\)\s+(?<size>(\d+,?)+)\sbytes'
>> True
>> PS > $matches
>>
>> Name Value
>> ---- -----
>> size 6,011,998,208
>> 1 208
>> 0 ) 6,011,998,208 bytes
>> PS > $matches.size
>> 6,011,998,208
> Yes. That one works in both environments.
>
> I'll guess I'll have to try tracing both cases
> and compare the traces?
> Maybe it's not such a great idea trying to *learn* PS on a beta
> version... <eg>
>
> Thanks again.
>
> Robert
> ---

Shay Levi

Oh... on GWPS too.


---
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

>> That one doesn't work in either PS or GWPS (CTP 2)
>>
> I tested it on:
>
> 1. W3K + PoSH v1
> 2. XP SP2 + PoSH CTP
> 3. Vista SP1 + PoSH CTP2
> All worked with no errors. What do you get for $size.groups (do you
> have a d:\ drive)?
>
> ---
> Shay Levi
> $cript Fanatic
> http://scriptolog.blogspot.com
>> "Shay Levi" <no@addre.ss> wrote in message
>> news:89228ed22e2718ca92ea64716d76@news.microsoft.c om...
>>> Hi Robert,
>>>
>>> I can't find any good explanation why named groups names are not
>>> available on $size.
>>>
>> It appears to be a difference between using the GWPS and PS (CTP
>> 2). I couldn't reproduce my problem symptom in the normal shell.
>>
>>> Btw, they are also avaiable using the Item member:
>>>
>>> #http://msdn.microsoft.com/en-us/library/hchbwda2.aspx
>>> PS > $dir = & cmd /c dir d:\
>>> PS > $size =
>>> [regex]::match($dir[-1],'\)\s+(?<size>(\d+,?)+)\sbytes')
>>> PS > $size.groups.item("size").value
>>> 6,010,818,560
>> That one doesn't work in either PS or GWPS (CTP 2)
>>
>> In both I get this error message:
>>
>> $size.groups.item("size").value
>> You cannot call a method on a null-valued expression.
>> At line:1 char:18
>> + $size.groups.item <<<< ("size").value
>>> Another alternative would be to use the -match operator. That way
>>> named groups become available as members on $matches:
>>>
>>> PS > $dir = & cmd /c dir d:\
>>> PS > $dir[-1] -match '\)\s+(?<size>(\d+,?)+)\sbytes'
>>> True
>>> PS > $matches
>>> Name Value
>>> ---- -----
>>> size 6,011,998,208
>>> 1 208
>>> 0 ) 6,011,998,208 bytes
>>> PS > $matches.size
>>> 6,011,998,208
>> Yes. That one works in both environments.
>>
>> I'll guess I'll have to try tracing both cases
>> and compare the traces?
>> Maybe it's not such a great idea trying to *learn* PS on a beta
>> version... <eg>
>> Thanks again.
>>
>> Robert
>> ---

Robert Aldwinckle

"Tao Ma" <feng_eden@163.com> wrote in message
news:#YzDmiMxIHA.420@TK2MSFTNGP02.phx.gbl...
> Hi Robert,
>
> I find some remarks on the MSDN:
>
> Namespace: System.Text.RegularExpressions
> Match Class
....


I found one which also shows this:

<extract>
Assembly: System (in system.dll)
</extract>

So I did a search for that module.
How do I find out which one is being used
and whether GWPS is using a different one
from PS CTP 2?


<cmd_output>
F:\>dir/s system.dll
Volume in drive F has no label.
Volume Serial Number is D4EA-7B87

Directory of F:\WINDOWS\assembly\GAC\System\1.0.5000.0__b77a5c5 61934e089

2007-07-16 13:04 1,232,896 System.dll
1 File(s) 1,232,896 bytes

Directory of F:\WINDOWS\assembly\GAC_MSIL\System\2.0.0.0__b77a5 c561934e089

2008-04-09 17:31 3,076,096 System.dll
1 File(s) 3,076,096 bytes

Directory of F:\WINDOWS\assembly\NativeImages1_v1.1.4322\System \1.0.5000.0__b77a5c561934e089_63e96c4b

2007-07-16 13:07 4,788,224 System.dll
1 File(s) 4,788,224 bytes

Directory of F:\WINDOWS\assembly\NativeImages1_v1.1.4322\System \1.0.5000.0__b77a5c561934e089_6e11cc66

2007-07-16 13:05 1,966,080 System.dll
1 File(s) 1,966,080 bytes

Directory of F:\WINDOWS\Microsoft.NET\Framework\v1.1.4322

2007-04-13 21:35 1,232,896 System.dll
1 File(s) 1,232,896 bytes

Directory of F:\WINDOWS\Microsoft.NET\Framework\v2.0.50727

2007-10-24 01:47 3,076,096 System.dll
1 File(s) 3,076,096 bytes

Total Files Listed:
6 File(s) 15,372,288 bytes
</cmd_output>


; )


Thanks.

Robert
---

Tao Ma

Hi Robert,

Try:
PS C:\> [Appdomain]::CurrentDomain.GetAssemblies() | ?
{$_.ManifestModule -like 'system.dll'}

GAC Version Location
--- ------- --------
True v2.0.50727
C:\WINDOWS\assembly\GAC_MSIL\System\2.0.0.0__b77a5 c561934e089\System.dll


Tao Ma


"Robert Aldwinckle" <robald@techemail.com> дÈëÏûÏ¢ÐÂÎÅ:%23tNenRPxIHA.3384@TK2MSFTNGP03.phx.g bl...
> "Tao Ma" <feng_eden@163.com> wrote in message
> news:#YzDmiMxIHA.420@TK2MSFTNGP02.phx.gbl...
>> Hi Robert,
>>
>> I find some remarks on the MSDN:
>>
>> Namespace: System.Text.RegularExpressions
>> Match Class
> ...
>
>
> I found one which also shows this:
>
> <extract>
> Assembly: System (in system.dll)
> </extract>
>
> So I did a search for that module.
> How do I find out which one is being used
> and whether GWPS is using a different one
> from PS CTP 2?
>
>
> <cmd_output>
> F:\>dir/s system.dll
> Volume in drive F has no label.
> Volume Serial Number is D4EA-7B87
>
> Directory of F:\WINDOWS\assembly\GAC\System\1.0.5000.0__b77a5c5 61934e089
>
> 2007-07-16 13:04 1,232,896 System.dll
> 1 File(s) 1,232,896 bytes
>
> Directory of F:\WINDOWS\assembly\GAC_MSIL\System\2.0.0.0__b77a5 c561934e089
>
> 2008-04-09 17:31 3,076,096 System.dll
> 1 File(s) 3,076,096 bytes
>
> Directory of
> F:\WINDOWS\assembly\NativeImages1_v1.1.4322\System \1.0.5000.0__b77a5c561934e089_63e96c4b
>
> 2007-07-16 13:07 4,788,224 System.dll
> 1 File(s) 4,788,224 bytes
>
> Directory of
> F:\WINDOWS\assembly\NativeImages1_v1.1.4322\System \1.0.5000.0__b77a5c561934e089_6e11cc66
>
> 2007-07-16 13:05 1,966,080 System.dll
> 1 File(s) 1,966,080 bytes
>
> Directory of F:\WINDOWS\Microsoft.NET\Framework\v1.1.4322
>
> 2007-04-13 21:35 1,232,896 System.dll
> 1 File(s) 1,232,896 bytes
>
> Directory of F:\WINDOWS\Microsoft.NET\Framework\v2.0.50727
>
> 2007-10-24 01:47 3,076,096 System.dll
> 1 File(s) 3,076,096 bytes
>
> Total Files Listed:
> 6 File(s) 15,372,288 bytes
> </cmd_output>
>
>
> ; )
>
>
> Thanks.
>
> Robert
> ---
>

David Kriz

Thank's You all very much for help!
:-)

I tested our solution with regular expression.
Unfortunately it probably depends on language version of operatin system (I must
use both English and Czech).
:-(

So that I must developed this solution:
/---------------------------------------------------------------\
Function FreeBytesInSharedFolder {
param ( [string]$piFolder )
[single]$RetVal = -1
if (Test-Path $piFolder) {
$DirOutput = & cmd.exe /c dir $piFolder
$StringWithNumber = $DirOutput[-1]
$X = $StringWithNumber.split(":")
$StringWithNumber = $X[2]
$AscCode = [byte]
[string]$Digits = "0"
for ($I = 0; $I -le $StringWithNumber.Length; $I++) {
$AscCode = [byte][char] $StringWithNumber[$I]
if (($AscCode -gt 47) -and ($AscCode -lt 57)) {
$Digits += $StringWithNumber[$I]
}
}
$RetVal = [single]$Digits
}
$RetVal
}
\_________________________________________________ ______________/


David Kriz wrote:
> Please,
>
> how can I get free space in shared folder?
>
> In "Cmd.exe" works this command:
> /---------------------------------------------------------------\
> C:\>dir \\bck01\backups
> Volume in drive \\bck01\backups is Backups
> Volume Serial Number is 0398-17C4
>
> Directory of \\bck01\backups
>
> 31.05.2008 19:01 <DIR> .
> 21.07.2006 20:30 <DIR> ..
> 27.05.2008 04:27 <DIR> CTX01
> 27.05.2008 23:02 <DIR> CTX02
> 28.02.2008 17:51 <DIR> BCK01
> 21.07.2006 20:35 <DIR> EXC01
> 07.01.2008 00:57 <DIR> SQL01
> 0 File(s) 0 bytes
> 7 Dir(s) 10 214 379 520 bytes free
>
> \_________________________________________________ ______________/
>
> And "10 214 379 520" is this information which I need in my scripts.

Tao Ma

Hi David,

I just write a painful code to query shared folder free space. Please do not
mind my poor English. I'm not a native Speaker.

Firstly, I tried to use System.IO.DriveInfo to solve this problem. But I
realize that it doesn't accept UNC format as its parameter.

Then I noticed that GetDiskFreeSpace can be used here. I don't know how to
call a win32 api in PowerShell at all yesterday...

There is post on the PowerShell Team Blog which introduce "Show-PowerShell /
Hide-PowerShell". After I read it, I know I can call
GetDiskFreeSpace in PowerShell....

# Just declare Win32 API...
$a = Add-Type -memberDefinition @"
[DllImport("Kernel32.dll")]
public static extern bool GetDiskFreeSpaceEx(
string lpDirectoryName,
IntPtr lpFreeBytesAvailable,
IntPtr lpTotalNumberOfBytes,
IntPtr lpTotalNumberOfFreeBytes
);
"@ -passthru -name MyGetDiskFreeSpaceEx

# Alloc some memory ...
$fba = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
$tnb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
$nfb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);

# Call 'GetDiskFreeSpaceEx' ...
$a::GetDiskFreeSpaceEx("\\.host\Shared Folders\files", $fba, $tnb, $nfb)

# Get the Value storing in the memory pointed by $fba...
$x = [System.Runtime.InteropServices.Marshal]::ReadInt64($fba)
$y = [System.Runtime.InteropServices.Marshal]::ReadInt64($tnb)
$z = [System.Runtime.InteropServices.Marshal]::ReadInt64($nfb)

# Display the result ...
"FreeBytesAvailable: $($x)"
"TotalNumberOfBytes: $($y)"
"TotalNumberOfFreeBytes: $($z)"

# !! Free the memory ASAP....
[System.Runtime.InteropServices.Marshal]::FreeHGlobal($fba);
[System.Runtime.InteropServices.Marshal]::FreeHGlobal($tnb);
[System.Runtime.InteropServices.Marshal]::FreeHGlobal($nfb);

I know this is really painful...But I just Call a Win32 API in PowerShell.
And I have to say PowerShell is really really really
Powerfullllllll............

Tao Ma


"David Kriz" <david.kriz@ccv.cz> дÈëÏûÏ¢ÐÂÎÅ:%23oNghD1wIHA.4376@TK2MSFTNGP06.phx.g bl...
> Please,
>
> how can I get free space in shared folder?
>
> In "Cmd.exe" works this command:
> /---------------------------------------------------------------\
> C:\>dir \\bck01\backups
> Volume in drive \\bck01\backups is Backups
> Volume Serial Number is 0398-17C4
>
> Directory of \\bck01\backups
>
> 31.05.2008 19:01 <DIR> .
> 21.07.2006 20:30 <DIR> ..
> 27.05.2008 04:27 <DIR> CTX01
> 27.05.2008 23:02 <DIR> CTX02
> 28.02.2008 17:51 <DIR> BCK01
> 21.07.2006 20:35 <DIR> EXC01
> 07.01.2008 00:57 <DIR> SQL01
> 0 File(s) 0 bytes
> 7 Dir(s) 10 214 379 520 bytes free
>
> \_________________________________________________ ______________/
>
> And "10 214 379 520" is this information which I need in my scripts.

Shay Levi

Hi Mao

You can try this, it's a PowerShell cross-version code:

[io.driveinfo]::getdrives()


and based on the result, get the free space for fixed drives:

[io.driveinfo]::getdrives() | where {$_.DriveType -eq "Fixed"} | select Name,AvailableFreeSpace


There's is also the wmi option:

gwmi Win32_LogicalDisk | where {$_.DriveType -eq 3} | select deviceID,FreeSpace

---
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

> Hi David,
>
> I just write a painful code to query shared folder free space. Please
> do not mind my poor English. I'm not a native Speaker.
>
> Firstly, I tried to use System.IO.DriveInfo to solve this problem. But
> I realize that it doesn't accept UNC format as its parameter.
>
> Then I noticed that GetDiskFreeSpace can be used here. I don't know
> how to call a win32 api in PowerShell at all yesterday...
>
> There is post on the PowerShell Team Blog which introduce
> "Show-PowerShell /
> Hide-PowerShell". After I read it, I know I can call
> GetDiskFreeSpace in PowerShell....
> # Just declare Win32 API...
> $a = Add-Type -memberDefinition @"
> [DllImport("Kernel32.dll")]
> public static extern bool GetDiskFreeSpaceEx(
> string lpDirectoryName,
> IntPtr lpFreeBytesAvailable,
> IntPtr lpTotalNumberOfBytes,
> IntPtr lpTotalNumberOfFreeBytes
> );
> "@ -passthru -name MyGetDiskFreeSpaceEx
> # Alloc some memory ...
> $fba = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
> $tnb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
> $nfb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
> # Call 'GetDiskFreeSpaceEx' ...
> $a::GetDiskFreeSpaceEx("\\.host\Shared Folders\files", $fba, $tnb,
> $nfb)
> # Get the Value storing in the memory pointed by $fba...
> $x = [System.Runtime.InteropServices.Marshal]::ReadInt64($fba)
> $y = [System.Runtime.InteropServices.Marshal]::ReadInt64($tnb)
> $z = [System.Runtime.InteropServices.Marshal]::ReadInt64($nfb)
> # Display the result ...
> "FreeBytesAvailable: $($x)"
> "TotalNumberOfBytes: $($y)"
> "TotalNumberOfFreeBytes: $($z)"
> # !! Free the memory ASAP....
> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($fba);
> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($tnb);
> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($nfb);
>
> I know this is really painful...But I just Call a Win32 API in
> PowerShell. And I have to say PowerShell is really really really
> Powerfullllllll............
>
> Tao Ma
>
> "David Kriz" <david.kriz@ccv.cz>
> дÈëÏûÏ¢ÐÂÎÅ:%23oNghD1wIHA.4376@TK2MSFTNGP06.phx.g bl...
>
>> Please,
>>
>> how can I get free space in shared folder?
>>
>> In "Cmd.exe" works this command:
>> /---------------------------------------------------------------\
>> C:\>dir \\bck01\backups
>> Volume in drive \\bck01\backups is Backups
>> Volume Serial Number is 0398-17C4
>> Directory of \\bck01\backups
>>
>> 31.05.2008 19:01 <DIR> .
>> 21.07.2006 20:30 <DIR> ..
>> 27.05.2008 04:27 <DIR> CTX01
>> 27.05.2008 23:02 <DIR> CTX02
>> 28.02.2008 17:51 <DIR> BCK01
>> 21.07.2006 20:35 <DIR> EXC01
>> 07.01.2008 00:57 <DIR> SQL01
>> 0 File(s) 0 bytes
>> 7 Dir(s) 10 214 379 520 bytes free
>> \_________________________________________________ ______________/
>>
>> And "10 214 379 520" is this information which I need in my scripts.
>>

Tao Ma

Hi Shay,

If I don't map the 'shared folder' on my computer, I cannot retrieve the
freespace.

The 'GetDiskSpaceEx' can retrieve it without mapping.

That's why I call a Win32 API in PowerShell.

Tao Ma

"Shay Levi" <no@addre.ss>
??????:89228ed22eec08ca93b39c29dfb8@news.microsoft .com...
>
> Hi Mao
>
> You can try this, it's a PowerShell cross-version code:
>
> [io.driveinfo]::getdrives()
>
> and based on the result, get the free space for fixed drives:
>
> [io.driveinfo]::getdrives() | where {$_.DriveType -eq "Fixed"} | select
> Name,AvailableFreeSpace
>
>
> There's is also the wmi option:
>
> gwmi Win32_LogicalDisk | where {$_.DriveType -eq 3} | select
> deviceID,FreeSpace
>
> ---
> Shay Levi
> $cript Fanatic
> http://scriptolog.blogspot.com
>
>> Hi David,
>>
>> I just write a painful code to query shared folder free space. Please
>> do not mind my poor English. I'm not a native Speaker.
>>
>> Firstly, I tried to use System.IO.DriveInfo to solve this problem. But
>> I realize that it doesn't accept UNC format as its parameter.
>>
>> Then I noticed that GetDiskFreeSpace can be used here. I don't know
>> how to call a win32 api in PowerShell at all yesterday...
>>
>> There is post on the PowerShell Team Blog which introduce
>> "Show-PowerShell /
>> Hide-PowerShell". After I read it, I know I can call
>> GetDiskFreeSpace in PowerShell....
>> # Just declare Win32 API...
>> $a = Add-Type -memberDefinition @"
>> [DllImport("Kernel32.dll")]
>> public static extern bool GetDiskFreeSpaceEx(
>> string lpDirectoryName,
>> IntPtr lpFreeBytesAvailable,
>> IntPtr lpTotalNumberOfBytes,
>> IntPtr lpTotalNumberOfFreeBytes
>> );
>> "@ -passthru -name MyGetDiskFreeSpaceEx
>> # Alloc some memory ...
>> $fba = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>> $tnb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>> $nfb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>> # Call 'GetDiskFreeSpaceEx' ...
>> $a::GetDiskFreeSpaceEx("\\.host\Shared Folders\files", $fba, $tnb,
>> $nfb)
>> # Get the Value storing in the memory pointed by $fba...
>> $x = [System.Runtime.InteropServices.Marshal]::ReadInt64($fba)
>> $y = [System.Runtime.InteropServices.Marshal]::ReadInt64($tnb)
>> $z = [System.Runtime.InteropServices.Marshal]::ReadInt64($nfb)
>> # Display the result ...
>> "FreeBytesAvailable: $($x)"
>> "TotalNumberOfBytes: $($y)"
>> "TotalNumberOfFreeBytes: $($z)"
>> # !! Free the memory ASAP....
>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($fba);
>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($tnb);
>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($nfb);
>>
>> I know this is really painful...But I just Call a Win32 API in
>> PowerShell. And I have to say PowerShell is really really really
>> Powerfullllllll............
>>
>> Tao Ma
>>
>> "David Kriz" <david.kriz@ccv.cz>
>> дÈëÏûÏ¢ÐÂÎÅ:%23oNghD1wIHA.4376@TK2MSFTNGP06.phx.g bl...
>>
>>> Please,
>>>
>>> how can I get free space in shared folder?
>>>
>>> In "Cmd.exe" works this command:
>>> /---------------------------------------------------------------\
>>> C:\>dir \\bck01\backups
>>> Volume in drive \\bck01\backups is Backups
>>> Volume Serial Number is 0398-17C4
>>> Directory of \\bck01\backups
>>>
>>> 31.05.2008 19:01 <DIR> .
>>> 21.07.2006 20:30 <DIR> ..
>>> 27.05.2008 04:27 <DIR> CTX01
>>> 27.05.2008 23:02 <DIR> CTX02
>>> 28.02.2008 17:51 <DIR> BCK01
>>> 21.07.2006 20:35 <DIR> EXC01
>>> 07.01.2008 00:57 <DIR> SQL01
>>> 0 File(s) 0 bytes
>>> 7 Dir(s) 10 214 379 520 bytes free
>>> \_________________________________________________ ______________/
>>>
>>> And "10 214 379 520" is this information which I need in my scripts.
>>>
>
>

Shay Levi

Hi Tao,

Sorry for misspelling your name please ignore my last post, it doesn't
relate to shares.


---
Shay Levi
$cript Fanatic
http://scriptolog.blogspot.com

> Hi Shay,
>
> If I don't map the 'shared folder' on my computer, I cannot retrieve
> the freespace.
>
> The 'GetDiskSpaceEx' can retrieve it without mapping.
>
> That's why I call a Win32 API in PowerShell.
>
> Tao Ma
>
> "Shay Levi" <no@addre.ss>
> ??????:89228ed22eec08ca93b39c29dfb8@news.microsoft .com...
>
>> Hi Mao
>>
>> You can try this, it's a PowerShell cross-version code:
>>
>> [io.driveinfo]::getdrives()
>>
>> and based on the result, get the free space for fixed drives:
>>
>> [io.driveinfo]::getdrives() | where {$_.DriveType -eq "Fixed"} |
>> select Name,AvailableFreeSpace
>>
>> There's is also the wmi option:
>>
>> gwmi Win32_LogicalDisk | where {$_.DriveType -eq 3} | select
>> deviceID,FreeSpace
>>
>> ---
>> Shay Levi
>> $cript Fanatic
>> http://scriptolog.blogspot.com
>>> Hi David,
>>>
>>> I just write a painful code to query shared folder free space.
>>> Please do not mind my poor English. I'm not a native Speaker.
>>>
>>> Firstly, I tried to use System.IO.DriveInfo to solve this problem.
>>> But I realize that it doesn't accept UNC format as its parameter.
>>>
>>> Then I noticed that GetDiskFreeSpace can be used here. I don't know
>>> how to call a win32 api in PowerShell at all yesterday...
>>>
>>> There is post on the PowerShell Team Blog which introduce
>>> "Show-PowerShell /
>>> Hide-PowerShell". After I read it, I know I can call
>>> GetDiskFreeSpace in PowerShell....
>>> # Just declare Win32 API...
>>> $a = Add-Type -memberDefinition @"
>>> [DllImport("Kernel32.dll")]
>>> public static extern bool GetDiskFreeSpaceEx(
>>> string lpDirectoryName,
>>> IntPtr lpFreeBytesAvailable,
>>> IntPtr lpTotalNumberOfBytes,
>>> IntPtr lpTotalNumberOfFreeBytes
>>> );
>>> "@ -passthru -name MyGetDiskFreeSpaceEx
>>> # Alloc some memory ...
>>> $fba = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>>> $tnb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>>> $nfb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>>> # Call 'GetDiskFreeSpaceEx' ...
>>> $a::GetDiskFreeSpaceEx("\\.host\Shared Folders\files", $fba, $tnb,
>>> $nfb)
>>> # Get the Value storing in the memory pointed by $fba...
>>> $x = [System.Runtime.InteropServices.Marshal]::ReadInt64($fba)
>>> $y = [System.Runtime.InteropServices.Marshal]::ReadInt64($tnb)
>>> $z = [System.Runtime.InteropServices.Marshal]::ReadInt64($nfb)
>>> # Display the result ...
>>> "FreeBytesAvailable: $($x)"
>>> "TotalNumberOfBytes: $($y)"
>>> "TotalNumberOfFreeBytes: $($z)"
>>> # !! Free the memory ASAP....
>>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($fba);
>>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($tnb);
>>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($nfb);
>>> I know this is really painful...But I just Call a Win32 API in
>>> PowerShell. And I have to say PowerShell is really really really
>>> Powerfullllllll............
>>>
>>> Tao Ma
>>>
>>> "David Kriz" <david.kriz@ccv.cz>
>>> дÈëÏûÏ¢ÐÂÎÅ:%23oNghD1wIHA.4376@TK2MSFTNGP06.phx.g bl...
>>>> Please,
>>>>
>>>> how can I get free space in shared folder?
>>>>
>>>> In "Cmd.exe" works this command:
>>>> /---------------------------------------------------------------\
>>>> C:\>dir \\bck01\backups
>>>> Volume in drive \\bck01\backups is Backups
>>>> Volume Serial Number is 0398-17C4
>>>> Directory of \\bck01\backups
>>>> 31.05.2008 19:01 <DIR> .
>>>> 21.07.2006 20:30 <DIR> ..
>>>> 27.05.2008 04:27 <DIR> CTX01
>>>> 27.05.2008 23:02 <DIR> CTX02
>>>> 28.02.2008 17:51 <DIR> BCK01
>>>> 21.07.2006 20:35 <DIR> EXC01
>>>> 07.01.2008 00:57 <DIR> SQL01
>>>> 0 File(s) 0 bytes
>>>> 7 Dir(s) 10 214 379 520 bytes free
>>>> \_________________________________________________ ______________/
>>>> And "10 214 379 520" is this information which I need in my
>>>> scripts.
>>>>

Tao Ma

Hi Shay,

It's ok.. My teacher dit it ten years ago...lol

David uses dir \\bck01\backups in the original thread. So I try to get the
freespace without mapping it. I can do it in cmd.exe but not in the
PowerShell. That's why I write such painful codes...

Tao Ma


"Shay Levi" <no@addre.ss>
??????:89228ed22eece8ca93b813e958c2@news.microsoft .com...
>
> Hi Tao,
>
> Sorry for misspelling your name please ignore my last post, it doesn't
> relate to shares.
>
>
> ---
> Shay Levi
> $cript Fanatic
> http://scriptolog.blogspot.com
>
>> Hi Shay,
>>
>> If I don't map the 'shared folder' on my computer, I cannot retrieve
>> the freespace.
>>
>> The 'GetDiskSpaceEx' can retrieve it without mapping.
>>
>> That's why I call a Win32 API in PowerShell.
>>
>> Tao Ma
>>
>> "Shay Levi" <no@addre.ss>
>> ??????:89228ed22eec08ca93b39c29dfb8@news.microsoft .com...
>>
>>> Hi Mao
>>>
>>> You can try this, it's a PowerShell cross-version code:
>>>
>>> [io.driveinfo]::getdrives()
>>>
>>> and based on the result, get the free space for fixed drives:
>>>
>>> [io.driveinfo]::getdrives() | where {$_.DriveType -eq "Fixed"} |
>>> select Name,AvailableFreeSpace
>>>
>>> There's is also the wmi option:
>>>
>>> gwmi Win32_LogicalDisk | where {$_.DriveType -eq 3} | select
>>> deviceID,FreeSpace
>>>
>>> ---
>>> Shay Levi
>>> $cript Fanatic
>>> http://scriptolog.blogspot.com
>>>> Hi David,
>>>>
>>>> I just write a painful code to query shared folder free space.
>>>> Please do not mind my poor English. I'm not a native Speaker.
>>>>
>>>> Firstly, I tried to use System.IO.DriveInfo to solve this problem.
>>>> But I realize that it doesn't accept UNC format as its parameter.
>>>>
>>>> Then I noticed that GetDiskFreeSpace can be used here. I don't know
>>>> how to call a win32 api in PowerShell at all yesterday...
>>>>
>>>> There is post on the PowerShell Team Blog which introduce
>>>> "Show-PowerShell /
>>>> Hide-PowerShell". After I read it, I know I can call
>>>> GetDiskFreeSpace in PowerShell....
>>>> # Just declare Win32 API...
>>>> $a = Add-Type -memberDefinition @"
>>>> [DllImport("Kernel32.dll")]
>>>> public static extern bool GetDiskFreeSpaceEx(
>>>> string lpDirectoryName,
>>>> IntPtr lpFreeBytesAvailable,
>>>> IntPtr lpTotalNumberOfBytes,
>>>> IntPtr lpTotalNumberOfFreeBytes
>>>> );
>>>> "@ -passthru -name MyGetDiskFreeSpaceEx
>>>> # Alloc some memory ...
>>>> $fba = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>>>> $tnb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>>>> $nfb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);
>>>> # Call 'GetDiskFreeSpaceEx' ...
>>>> $a::GetDiskFreeSpaceEx("\\.host\Shared Folders\files", $fba, $tnb,
>>>> $nfb)
>>>> # Get the Value storing in the memory pointed by $fba...
>>>> $x = [System.Runtime.InteropServices.Marshal]::ReadInt64($fba)
>>>> $y = [System.Runtime.InteropServices.Marshal]::ReadInt64($tnb)
>>>> $z = [System.Runtime.InteropServices.Marshal]::ReadInt64($nfb)
>>>> # Display the result ...
>>>> "FreeBytesAvailable: $($x)"
>>>> "TotalNumberOfBytes: $($y)"
>>>> "TotalNumberOfFreeBytes: $($z)"
>>>> # !! Free the memory ASAP....
>>>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($fba);
>>>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($tnb);
>>>> [System.Runtime.InteropServices.Marshal]::FreeHGlobal($nfb);
>>>> I know this is really painful...But I just Call a Win32 API in
>>>> PowerShell. And I have to say PowerShell is really really really
>>>> Powerfullllllll............
>>>>
>>>> Tao Ma
>>>>
>>>> "David Kriz" <david.kriz@ccv.cz>
>>>> дÈëÏûÏ¢ÐÂÎÅ:%23oNghD1wIHA.4376@TK2MSFTNGP06.phx.g bl...
>>>>> Please,
>>>>>
>>>>> how can I get free space in shared folder?
>>>>>
>>>>> In "Cmd.exe" works this command:
>>>>> /---------------------------------------------------------------\
>>>>> C:\>dir \\bck01\backups
>>>>> Volume in drive \\bck01\backups is Backups
>>>>> Volume Serial Number is 0398-17C4
>>>>> Directory of \\bck01\backups
>>>>> 31.05.2008 19:01 <DIR> .
>>>>> 21.07.2006 20:30 <DIR> ..
>>>>> 27.05.2008 04:27 <DIR> CTX01
>>>>> 27.05.2008 23:02 <DIR> CTX02
>>>>> 28.02.2008 17:51 <DIR> BCK01
>>>>> 21.07.2006 20:35 <DIR> EXC01
>>>>> 07.01.2008 00:57 <DIR> SQL01
>>>>> 0 File(s) 0 bytes
>>>>> 7 Dir(s) 10 214 379 520 bytes free
>>>>> \_________________________________________________ ______________/
>>>>> And "10 214 379 520" is this information which I need in my
>>>>> scripts.
>>>>>
>
>