创建自定义对象并使用输出

I'm using the following to read one line from a whole load of text files and then summarize that information into one file.

我正在使用以下内容从一大堆文本文件中读取一行,然后将该信息汇总到一个文件中。

$computers = Get-content computers.txt
$users = users.csv
$header = 'Computer','User','Date','Time'

Foreach ($computer in $computers)
{
$file = $computer +'.txt'

$a = import-csv $file -Header $header | Select -first 1 
$obj = New-Object PSObject
$obj | Add-Member NoteProperty Computer ($a.Computer)
$obj | Add-Member NoteProperty User ($a.User)
$obj | Add-Member NoteProperty Date ($a.Date)
$obj | Add-Member NoteProperty Time ($a.Time)

Write-Output $obj
$obj | Export-csv -path  $users -notype
}

When I run the code the Write-Output outputs all the records as expected, but the Export-CSV only contains the last record. What am I doing wrong?

当我运行代码时,Write-Output按预期输出所有记录,但Export-CSV仅包含最后一条记录。我究竟做错了什么?

2 个解决方案

#1

You are overwriting the csv file with each loop iteration. I believe the following gives what you're after assuming each csv file has only four columns (i.e Computer,User,Date,Time):

您将在每次循环迭代时覆盖csv文件。我相信以下内容假设您假设每个csv文件只有四列(即计算机,用户,日期,时间):

Get-content computers.txt | foreach-object {
    import-csv "$computer.txt" -Header $header | Select -first 1 
} | Export-csv $users -notype

#2

Create an array variable and add each $obj to it. After the foreach loop, export the array of objects e.g.:

创建一个数组变量并将每个$ obj添加到它。在foreach循环之后,导出对象数组,例如:

$arr = @()

foreach (...) {
    ...
    $arr += $obj
}

$arr | Export-csv -path  $users -notype

#1