適切な出力コマンドレットの「-Append」パラメータ。

Question

Write-Host "Drive information for $env:ComputerName" 

Get-WmiObject -Class Win32_LogicalDisk | 
    Where-Object {$_.DriveType -ne 5} | 
    Sort-Object -Property Name | 
    Select-Object Name, VolumeName, VolumeSerialNumber,SerialNumber, FileSystem, Description, VolumeDirty, ` 
     @{"Label"="DiskSize(GB)";"Expression"={"{0:N}" -f ($_.Size/1GB) -as [float]}}, ` 
     @{"Label"="FreeSpace(GB)";"Expression"={"{0:N}" -f ($_.FreeSpace/1GB) -as [float]}}, ` 
     @{"Label"="%Free";"Expression"={"{0:N}" -f ($_.FreeSpace/$_.Size*100) -as [float]}} | 
    Format-Table -AutoSize 

---

gcim Win32_OperatingSystem | f1 * | f1 > info.txt; notepad.exe info.txt 

Answer 1

$path="$([Environment]::GetFolderPath("Desktop"))\info.txt"; 
    gcim Win32_OperatingSystem | select Caption, InstallDate | fl | out-file $path; 
    "Drive information for $env:ComputerName" | out-file $path -Append; 
    Get-WmiObject -Class Win32_LogicalDisk | Where-Object {$_.DriveType -ne 5} | Sort-Object -Property Name | Select-Object Name, VolumeName, VolumeSerialNumber,SerialNumber, FileSystem, Description, VolumeDirty, ` @{"Label"="DiskSize(GB)";"Expression"={"{0:N}" -f ($_.Size/1GB) -as [float]}}, ` @{"Label"="FreeSpace(GB)";"Expression"={"{0:N}" -f ($_.FreeSpace/1GB) -as [float]}}, ` @{"Label"="%Free";"Expression"={"{0:N}" -f ($_.FreeSpace/$_.Size*100) -as [float]}} | Format-Table -AutoSize | out-file $path -Append 

    notepad $path;