How can get the volume of a specified folder directly using JSL?

[#1]

For example, this folder:

C:\Windows

Thanks!

[#2]

I don't believe it can be derived directly.  Here is what I cam up with

Names Default To Here( 1 );
theList = Files In Directory( "C:\Windows" );
totSize = 0;
For Each( {theFile}, theList,
	totSize = Sum( totSize, File Size( "C:\Windows\" || theFile ) )
);
Show( totSize );

But it doesn't appear to be accurate

[#3]

Thank Jim!

[#4]

• Yes, this result is obviously incorrect.

[#5]

It might be better to perform this type of check using Run Program and some command with it.

With Files In Directory you will have to add recursive(1) (or perform a loop yourself, to get files inside folders).

Names Default To Here(1);
lookup_dir = "C:\Windows\";
file_list = Files In Directory(lookup_dir, recursive(1));
file_sizes = Transform Each({cur_file}, file_list,
	File Size(lookup_dir || cur_file)
);
sum(file_sizes);

https://www.jmp.com/support/help/en/17.0/#page/jmp/file-functions.shtml?os=win&source=application#ww...

You can also use Multiple File Import for this Directory Tree: Explore Space Used by Folders 

[#6]

As @jthi suggested, here's a way to do it using Run Program / Powershell (from JMP, of course).

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Names Default To Here( 1 );
op = {};
rp = Run Program(
	Executable( "powershell.exe" ),
	Options( "ls c:\temp\ -r | measure -sum Length" ), //Replace c:\temp\ with your folder
	ReadFunction( Function( {this}, Insert Into( op, this << read ) ) )
);

for each ({i}, op,
	if (word(1, i) == "Sum", totalsize = num(regex (i, "([0-9]+)")))
);

show (totalsize);

[#7]

Now GPT-4o is very powerful, it can do ordinary programming:

In the win10 system, the volume size of each directory of the C disk (including hidden files), the specific requirements are:
Starting from the root directories of drive C,
1, if the subdirectory of this directory is more than 3 layers, it can be expanded to the third layer directory, statistics of the respective volume of each directory contained in the third layer directory
2, if the subdirectory of this directory does not exceed 3 layers, the statistics of the expansion of this directory to the last layer of the directory of the respective volume

t1=tick seconds();run program(executable("cmd.exe"),options({"/c powershell -Command \!"& {$results = @(); Get-ChildItem C:\ -Directory -Force | ForEach-Object { $topDir = $_; $subDirs = Get-ChildItem $topDir.FullName -Recurse -Directory -Force -ErrorAction SilentlyContinue | Where-Object { ($_.FullName.Split('\').Length - 1) -le 3 }; if ($subDirs) { $subDirs | ForEach-Object { $size = (Get-ChildItem $_.FullName -Recurse -File -Force -ErrorAction SilentlyContinue | Measure-Object -Property Length -Sum).Sum; $results += [PSCustomObject]@{ Path = $_.FullName; 'Size (MB)' = [math]::Round($size / 1MB, 2) } } } else { $size = (Get-ChildItem $topDir.FullName -Recurse -File -Force -ErrorAction SilentlyContinue | Measure-Object -Property Length -Sum).Sum; $results += [PSCustomObject]@{ Path = $topDir.FullName; ')' = [math]::Round($size / 1MB, 2) } } }; $results | Export-Csv -Path 'D:\目录大小.csv' -NoTypeInformation -Encoding UTF8}\!""}));
t2=tick seconds();t=t2-t1;

[#8]