Export Powershell command to Excel - excel

Question

I have the following command
Get-WmiObject win32_OperatingSystem |%{"Total Physical Memory: {0}KB`nFree Physical Memory : {1}KB`nTotal Virtual Memory : {2}KB`nFree Virtual Memory : {3}KB" -f $_.totalvisiblememorysize, $_.freephysicalmemory, $_.totalvirtualmemorysize, $_.freevirtualmemory}
I want to export the above output to an excel file. I have:
Get-WmiObject win32_OperatingSystem |%{"Total Physical Memory: {0}KB`nFree Physical Memory : {1}KB`nTotal Virtual Memory : {2}KB`nFree Virtual Memory : {3}KB" -f $_.totalvisiblememorysize, $_.freephysicalmemory, $_.totalvirtualmemorysize, $_.freevirtualmemory} | Select-Object VisibleMem, FreeMem, VirtualMem,FreeVirtualMem | Export-Csv -Path "C:\Test.csv" -Encoding ascii -NoTypeInformation -UseCulture
This doesn't output anything besides titles of columns.I am looking for the output in each column. Any help?

Answer 1

You're throwing away the object with its properties when you create the the strings in your Foreach-Object loop so you don't have anything to export to csv anymore.
The property names in Select-Object doesn't exist. You can't make up column names (without using calculated properties/columns, see sample of this below).
Try this to output the data:
Get-WmiObject win32_OperatingSystem |
Select-Object TotalVisibleMemorySize, FreePhysicalMemory, TotalVirtualMemorySize, FreeVirtualMemory |
Export-Csv -Path "C:\Test.csv" -Encoding ascii -NoTypeInformation -UseCulture
If you need different column-names:
Get-WmiObject win32_OperatingSystem |
Select-Object #{n="VisibleMem";e={$_.TotalVisibleMemorySize}}, #{n="FreeMem";e={$_.FreePhysicalMemory}}, #{n="VirtualMem";e={$_.TotalVirtualMemorySize}}, #{n="FreeVirtualMem";e={$_.FreeVirtualMemory}} |
Export-Csv -Path "C:\Test.csv" -Encoding ascii -NoTypeInformation -UseCulture
If you need to write the text to the screen (for the user to see) while also saving them you would need to use Write-Host and remember to let the object passthrough to the next cmdlet in the pipeline:
Get-WmiObject win32_OperatingSystem |
ForEach-Object {
#Write to screen
Write-Host ("Total Physical Memory: {0}KB`nFree Physical Memory : {1}KB`nTotal Virtual Memory : {2}KB`nFree Virtual Memory : {3}KB" -f $_.totalvisiblememorysize, $_.freephysicalmemory, $_.totalvirtualmemorysize, $_.freevirtualmemory);
#Throw the original object to the next cmdlet in the pipeline
$_
} |
Select-Object TotalVisibleMemorySize, FreePhysicalMemory, TotalVirtualMemorySize, FreeVirtualMemory |
Export-Csv -Path "C:\Test.csv" -Encoding ascii -NoTypeInformation -UseCulture