powershell - 根据服务器名称分解 csv 数据

Question

我的 csv 文件中有以下数据

"Server Name","Control Group","Tape Number","Status"
"BR502","QCLDUSYSW","Q23028","ACTIVE"
"BR502","QCLDUSYSW","Q32521","ACTIVE"
"BR502","QCLDUSYSW","Q05599","ACTIVE"
"BR503","QCLDUIPLW","Q25582","ACTIVE"
"BR503","QCLDUIPLW","Q15529","ACTIVE"
"BR503","QCLDUIPLW","Q05109","ACTIVE"
"BR504","QCLDUSYSW","Q14445","ACTIVE"
"BR504","QCLDUSYSW","Q27785","ACTIVE"
"BR504","QCLDUUSRD","Q26071","ACTIVE"
"BR505","QCLDUGRPD","Q27657","ACTIVE"
"BR505","QCLDUIPLW","Q17404","ACTIVE"

请让我知道如何根据服务器名称来破解它，如下所示

"Server Name","Control Group","Tape Number","Status"
"BR502","QCLDUSYSW","Q23028","ACTIVE"
"BR502","QCLDUSYSW","Q32521","ACTIVE"
"BR502","QCLDUSYSW","Q05599","ACTIVE"

"Server Name","Control Group","Tape Number","Status"
"BR503","QCLDUIPLW","Q25582","ACTIVE"
"BR503","QCLDUIPLW","Q15529","ACTIVE"
"BR503","QCLDUIPLW","Q05109","ACTIVE"

其余服务器依此类推。

Answer 1

使用Group-Object cmdlet根据特定属性将记录分组在一起:

Import-Csv .\input.csv |Group-Object -Property 'Server Name' |ForEach-Object {
  # for each group, output a new CSV file with just the records pertaining to that server, named after the server
  $_.Group |Export-Csv .\$($_.Name).csv -NoTypeInformation
}