收集计算机分区信息，去除列中的重复值（Excel）（空行）

收集计算机分区信息

 $servers = gc D:\serverlist.txt
 $result = $results = $null
 $results = @()
 foreach ($server in $servers)
 {
  If ($server -eq "")
  $UserName = "administrator"
  $serverpass ="abcd"
  $Password = ConvertTo-SecureString $serverpass -AsPlainText –Force
  $cred = New-Object System.Management.Automation.PSCredential($UserName,$Password)

  $disks = Get-WmiObject -Class Win32_LogicalDisk -ComputerName $server -Credential $cred -Filter "DriveType=3"
  foreach ($disk in $disks)
     {
      $result = ""|Select Server,DeviceID,FreeSize,TotalSize,Free_Percentage
      $result.Server = $server
      $result.DeviceID = $disk.deviceid
      $result.FreeSize = ($disk.freespace/1GB).tostring("f1")
      $result.TotalSize = ($disk.size/1GB).tostring("f1")
      $result.Free_Percentage = "{0:p}" -f ($disk.freespace / $disk.size)
      $results += $result
     }
 }
  $results |export-csv  D:\disks.csv -Encoding default -NoTypeInformation

收集结果如下图所示：

要求去除A列中的重复字段，去除后如下：

代码如下：

 $dd = import-csv d:\disks.csv
 #通过倒序方法去除列中重复值
 for ($i=$dd.count-1;$i -ge 0;$i--)
 {
 $previous = $dd[$i-1].Server
 $current = $dd[$i].Server
 If ($current -eq $previous)
    {
     $dd[$i].Server = ""
    }
 }
 $dd|export-csv d:\disks2.csv -Encoding default -NoTypeInformation