Question

我需要过滤CSV行的最后一个元素。因此，在每个文件的最后一列。据我了解，我进行了此导入，以过滤并导出最后一列。

(Import-Csv Test.csv -Delimiter "," -Header "R","S","T","U","V","W","X","Y","Z","A") |
    Select-Object -ExcludeProperty $_.A |
    Export-Csv test1.csv –NoTypeInformation

然后，我的导出文件由一个重复的标头组成，其中添加了，，，，，，+ +每行也添加了，，，，，，。

是否有更好的方法过滤或删除最后一列？

编辑：这是我的输入文件：

R,"S","T","U","V","W","X","Y","Z","A"
R,"Software","Test","Uruguay","22","Waldschutzinitiative","Xander","Ytho","Zahlung","AJ3DJF"
RwieRichard,"S","Test","Uruguay","22","Waldschutzinitiative","Xander","Ytho","Zahlung","AJ3DJF"
RwieRichard,"Software","T","Uruguay","22","Waldschutzinitiative","Xander","Ytho","Zahlung","AJ3DJF"
RwieRichard,"Software","Test","U","22","Waldschutzinitiative","Xander","Ytho","Zahlung","AJ3DJF"
RwieRichard,"Software","Test","Uruguay","V","Waldschutzinitiative","Xander","Ytho","Zahlung","AJ3DJF"
RwieRichard,"Software","Test","Uruguay","22","We","Xander","Ytho","Zahlung","AJ3DJF"
RwieRichard,"Software","Test","Uruguay","22","Waldschutzinitiative","X","Ytho","Zahlung","AJ3DJF"
RwieRichard,"Software","Test","Uruguay","22","Waldschutzinitiative","Xander","Y","Zahlung","AJ3DJF"
RwieRichard,"Software","Test","Uruguay","22","Waldschutzinitiative","Xander","Ytho","Z","AJ3DJF"
RwieRichard,"Software","Test","Uruguay","22","Waldschutzinitiative","Xander","Ytho","Zahlung","A"
RwieRichard,"Software","Test","Uruguay","22","Waldschutzinitiative","Xander","Ytho","Zahlung","AJ3DJF"

输出文件：

"R,""S"",""T"",""U"",""V"",""W"",""X"",""Y"",""Z"""
"R,""S"",""T"",""U"",""V"",""W"",""X"",""Y"",""Z"",""A"",,,,,,,,"
"R,""Software"",""Test"",""Uruguay"",""22"",""Waldschutzinitiative"",""Xander"",""Ytho"",""Zahlung"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""S"",""Test"",""Uruguay"",""22"",""Waldschutzinitiative"",""Xander"",""Ytho"",""Zahlung"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""Software"",""T"",""Uruguay"",""22"",""Waldschutzinitiative"",""Xander"",""Ytho"",""Zahlung"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""Software"",""Test"",""U"",""22"",""Waldschutzinitiative"",""Xander"",""Ytho"",""Zahlung"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""Software"",""Test"",""Uruguay"",""V"",""Waldschutzinitiative"",""Xander"",""Ytho"",""Zahlung"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""Software"",""Test"",""Uruguay"",""22"",""We"",""Xander"",""Ytho"",""Zahlung"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""Software"",""Test"",""Uruguay"",""22"",""Waldschutzinitiative"",""X"",""Ytho"",""Zahlung"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""Software"",""Test"",""Uruguay"",""22"",""Waldschutzinitiative"",""Xander"",""Y"",""Zahlung"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""Software"",""Test"",""Uruguay"",""22"",""Waldschutzinitiative"",""Xander"",""Ytho"",""Z"",""AJ3DJF"",,,,,,,,"
"RwieRichard,""Software"",""Test"",""Uruguay"",""22"",""Waldschutzinitiative"",""Xander"",""Ytho"",""Zahlung"",""A"",,,,,,,,"
"RwieRichard,""Software"",""Test"",""Uruguay"",""22"",""Waldschutzinitiative"",""Xander"",""Ytho"",""Zahlung"",""AJ3DJF"",,,,,,,,"

Answer 1

要使-ExcludeProperty工作，您还必须指定-Property。另外，该参数的参数必须仅是属性名称，而不是$_.A。

更改

... | Select-Object -ExcludeProperty $_.A | ...

到

... | Select-Object -Property * -ExcludeProperty A | ...

编辑：从您声称的示例输出中可以看出，实际代码和数据之间的分隔符不匹配。您的数据是以逗号分隔的，并且您为导入指定了一个不同的定界符，或者您确实为导入指定了逗号，但是您的实际数据由另一个字符定界。无论哪种方式，都可以解决。如果您的数据实际上用逗号分隔，则您甚至不需要为导入指定分隔符，因为Import-Csv默认为,。

此外，您的数据似乎已经具有标题，因此在导入过程中一定不要指定标题。

如果以逗号分隔，这应该正确导入您的CSV：

Import-Csv 'test.csv' | ...

如果以分号分隔，这应该正确导入CSV：

Import-Csv 'test.csv' -Delimiter ';' | ...

过滤/删除CSV文件的最后一列

1 个答案: