转置部分CSV

时间：2016-10-17 16:45:34

标签： powershell csv transpose

我有一个包含10000行的Excel文件，如下所示：

softwarename1, a, b, c, d, e, f, g, h, i
softwarename2, f, e, r, g, u, o, d
softwarename3,
softwarename4, x

我想成为以下人物：

softwarename1 a
softwarename1 b
softwarename1 c
softwarename1 d
softwarename1 e
softwarename1 f
softwarename1 g
softwarename1 h 
softwarename1 i
softwarename2 f
softwarename2 e
softwarename2 r
softwarename2 g
softwarename2 u
softwarename2 o
softwarename2 d
softwarename3 
softwarename4 x
softwarename4 ac
softwarename4 gd
softwarename4 d

目前我只知道如何导入CSV文件：

[[" ", " "], [" ", " "]]

任何帮助都会受到赞赏，因为我不知道如何开始。

3 个答案:

答案 0 :(得分：0)

此处不需要import-csv（ - 我甚至认为csv是错误的存储格式，因为应该指定每列的afaik）。以下是替代单行：

Get-Content C:\tmp\ib20161016.csv |
           ForEach {$s = $_.split(","); $s[1..($s.length-1)] | ForEach{$s[0] + " " + $_}}

编辑：这不会给出在该行中只有一个条目的极端情况。请参阅另一个答案。

答案 1 :(得分：0)

<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <script language="javascript">
            var slideIndex = 1;
            showSlides(slideIndex);

            function plusSlides(n) {
              showSlides(slideIndex += n);
            }

            function currentSlide(n) {
              showSlides(slideIndex = n);
            }

            function showSlides(n) {
              var i;
              var slides = document.getElementsByClassName("mySlides");
              var dots = document.getElementsByClassName("dot");
              if (n > slides.length) {slideIndex = 1} 
              if (n < 1) {slideIndex = slides.length}
              for (i = 0; i < slides.length; i++) {
                  slides[i].style.display = "none"; 
              }
              for (i = 0; i < dots.length; i++) {
                  dots[i].className = dots[i].className.replace(" active", "");
              }
              slides[slideIndex-1].style.display = "block"; 
              dots[slideIndex-1].className += " active";
            }
        </script>
   </head>

<body>
 <div class="slideshow-container">

         <div class="mySlides fade">
              <div class="numbertext">1 / 5</div>
              <img src="img/hispanic1.png" alt="dancers performing" style="width:100%" >
          <div class="text">Hispanic dancers performing at the Hispanic Heritage Festival</div>
         </div>  

         <div class="mySlides fade">
              <div class="numbertext">2 / 5</div>
              <img src="img/pinkribbon2.png" alt="pink ribbon" style="width:100%">
              <div class="text">Come support Breast Cancer Awareness Month at Santa Fe</div>
         </div>

         <div class="mySlides fade">
              <div class="numbertext">3 / 5</div>
              <img src="img/bloodbus1.png" alt="Blood Drive Bus" style="width:100%">
              <div class="text">Come donate blood for our Halloween Event!</div>
            </div>

            <div class="mySlides fade">
                 <div class="numbertext">4 / 5</div>
                 <img src="img/volunteer1.png" alt="Volunteers Pointing" style="width:100%">
                 <div class="text">Volunteer with a wonderful organization at our Volunteer Fair!</div>
            </div>

             <div class="mySlides fade">
                  <div class="numbertext">5 / 5</div>
                  <img src="img/clubrush1.png" alt="Girls rugby table" style="width:100%">
                  <div class="text">Come out and join a club at Club Rush!</div>
            </div>

            <a class="prev" onclick="plusSlides(-1)">❮</a>
            <a class="next" onclick="plusSlides(1)">❯</a>

         </div>
            <br>

         <div style="text-align:center">
            <span class="dot" onclick="currentSlide(1)"></span>
            <span class="dot" onclick="currentSlide(2)"></span>
            <span class="dot" onclick="currentSlide(3)"></span>
            <span class="dot" onclick="currentSlide(4)"></span>
            <span class="dot" onclick="currentSlide(5)"></span>
         </div> 
    </body>
</html>

/* Slideshow container */
.slideshow-container {
  max-width: 1000px;
  position: relative;
  margin: auto;
}

/* Next & previous buttons */
.prev, .next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  margin-top: -22px;
  padding: 16px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover, .next:hover {
  background-color: rgba(0,0,0,0.8);
}

/* Caption text */
.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}

/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

/* The dots/bullets/indicators */
.dot {
  cursor:pointer;
  height: 13px;
  width: 13px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}

.active, .dot:hover {
  background-color: #717171;
}

/* Fading animation */
.fade {
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1.5s;
  animation-name: fade;
  animation-duration: 1.5s;
}

@-webkit-keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

@keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

注意：我不确定最后3个值的来源，我假设$source = get-content C:\tmp\ib20161016.csv $Output = foreach ($row in $source) { $rowarray = $row.split(',').trim() $softwarename = $rowarray[0] $values = $rowarray[1..($rowarray.length - 1)] if ($null -ne $values) { foreach ($value in $values) { "$softwarename $value" } } else { $softwarename } } $Output | Out-File C:\tmp\ib20161016.txt 应该是softwarename4, x

您不希望使用Import-CSV，因为您没有列标题。如果您这样做，它会将您的电子表格转换为属性将无序的对象。它不是真正的CSV，因为不同的列不匹配，它实际上只是一个txt文件。

答案 2 :(得分：0)

这是一个不同的，但我喜欢Powershell的好挑战。根据您的数据，以下内容将根据您的详细信息生成所需的结果：

$data = gc  -Path "C:\Users\Iris Classon\Documents\data.csv" 

$csv = ""

$nl = [Environment]::NewLine

$data | % {

    $columns = $_.ToString().Split(',')

    For ($i=1; $i -lt $columns.Length; $i++) {

        $csv  += "{0} {1}{2}" -f $columns[0],$columns[$i],$nl
    }
}

Write-Host $csv

<强>结果： 

softwarename1  a
softwarename1  b
softwarename1  c
softwarename1  d
softwarename1  e
softwarename1  f
softwarename1  g
softwarename1  h
softwarename1  i
softwarename2  f
softwarename2  e
softwarename2  r
softwarename2  g
softwarename2  u
softwarename2  o
softwarename2  d
softwarename3 
softwarename4  x

这是一个功能相同但由于某些验证检查而不易出错的功能。 

<#
    .SYNOPSIS 
    Splits CSV in an unusual way..

    .DESCRIPTION

    .INPUTS
    Source file, target file and delimiter

    .OUTPUTS

    .EXAMPLE
    Split-CSV -SourceFile "C:\data.csv" -TargetFile "C:\data3.csv" -Delimiter " "

    Split-CSV -SourceFile "C:\data.csv" -TargetFile "C:\data3.csv" -Delimiter ","

#>

function Split-CSV {
    [CmdletBinding(SupportsShouldProcess,ConfirmImpact = "high")]
    param(
    [Parameter(Mandatory = $true,HelpMessage = "`t Please provide path")]
    [ValidateNotNullOrEmpty()]
    [string]$SourceFile,
    [Parameter(Mandatory = $true,HelpMessage = "`t Please provide path")]
    [ValidateNotNullOrEmpty()]
    [string]$TargetFile,
    [Parameter(Mandatory = $true,HelpMessage = "`t Please provide delimiter for new csv")]
    [ValidateNotNullOrEmpty()]
    [string]$Delimiter
  )

    $data = gc -Path $SourceFile

    $csv = ""

    $nl = [Environment]::NewLine

    $data | % {


    if ($_){

        $columns = $_.ToString().Split(',')

            if ($columns.Length -gt 1){

                For ($i=1; $i -lt $columns.Length; $i++) {
                    $csv  += "{0}{1}{2}{3}" -f $columns[0],$Delimiter,$columns[$i],$nl
                }
            }
        }
    }

    $csv | Out-File  $TargetFile
}

Split-CSV -SourceFile＆＃34; C：\ data.csv＆＃34; -TargetFile＆＃34; C：\ data3.csv＆＃34; -Delimiter＆＃34;，＆＃34;

产生与之前相同的结果，但使用逗号作为分隔符

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