Powershell在每个while循环后附加csv文件

Question

您能告诉我如何添加一个 csv 文件，以便将每个变量的数据写入所需的列吗？为每个新循环换一个新行？

New-Item -Path . -Name "Test.csv" -ItemType "file" -force | Out-Null
("" | Select-Object Date, RAM_1, RAM_2, RAM_3, RAM_Used_total_%, RAM_Free%, CPU_Load% | ConvertTo-Csv -NoType -Delimiter ";")[0] | Out-File '.\Test.csv'

# Start the while loops

while($true) {

# In which data is collected into variables that need to be entered into each of the columns, respectively

$date
$RAM_1
$RAM_2
$RAM_3
$RAM_Usage
$Free_RAM
$CPU_Load

    
    
    Start-Sleep -s 60
}

提前谢谢你

Answer 1

不要尝试手动编写 CSV 文件 - 让 Export-CSV 代您处理：

while($true) {
  # populate your variables ...
  $date = $(<# ... #>)
  $RAM_1 = $(<# ... #>)
  $RAM_2 = $(<# ... #>)
  $RAM_3 = $(<# ... #>)
  $RAM_Usage = $(<# ... #>)
  $Free_RAM = $(<# ... #>)
  $CPU_Load = $(<# ... #>)

  # then create a new object with the correct column names
  $record = [pscustomobject]@{
    'Date'              = $date
    'RAM_1'             = $RAM_1
    'RAM_2'             = $RAM_2
    'RAM_3'             = $RAM_3
    'RAM_Used_total_%'  = $RAM_Usage
    'RAM_Free%'         = $Free_RAM
    'CPU_Load%'         = $CPU_Load
  }

  # append record to CSV
  $record |Export-Csv .\path\to\output.csv -Append

  Start-Sleep -s 60
}