如何在Powershell中更改多个文件名？

我正在尝试从多个文件的末尾删除名称“-xx_xx”的部分内容。我用这个，效果很好

dir | Rename Item-NewName{$\uu.Name-replace“-xx_xx”，“”}

但是，还有其他部分，如：

“-yy_-yy” “-zz_-zz”

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如何一次删除所有这些，而不是一次又一次地运行它来更改要删除的名称部分？

最简单的方法

如果需要的话，您可以继续编写

-replace

语句，直到奶牛回家

$myLongFileName = "Something xx_xx yy_yy zz_zz" -replace "xx_xx","" -replace "yy_yy"

更简洁的语法

如果每个文件都有这些，您还可以创建一个要替换的片段数组，就像这样，只需用逗号分隔它们

$stuffWeDontWantInOurFile =@("xx_xx", "yy_yy", "zz_zz")
$myLongFileName -replace $stuffWeDontWantInOurFile, ""

还有另一种方式

如果文件元素之间用空格、破折号或其他可预测的分隔符分隔，则可以在该位置拆分文件名

$myLongFileName = "Something xx_xx yy_yy zz_zz" 

PS> $myLongFileName.Split()
Something
xx_xx
yy_yy
zz_zz

PS> $myLongFileName.Split()[0] #select just the first piece
Something

对于空格，可以使用

Spit（）

方法，其中没有重载

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如果是破折号或其他字符，您可以像这样提供

Split（“-”）

。在这些技术之间，你应该能够做你想做的事。

如果你说，模式

-xx\u xx

总是在文件名的末尾，我建议你使用如下方式：

Get-ChildItem -Path '<TheFolderWhereTheFilesAre>' -File | 
    Rename-Item -NewName { 
        '{0}{1}' -f ($_.BaseName -replace '\s*-\s*.._..$'), $_.Extension 
    } -WhatIf

正则表达式详细信息：

\s Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.) * Between zero and unlimited times, as many times as possible, giving back as needed (greedy) - Match the character “-” literally \s Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.) * Between zero and unlimited times, as many times as possible, giving back as needed (greedy) . Match any single character that is not a line break character . Match any single character that is not a line break character _ Match the character “_” literally . Match any single character that is not a line break character . Match any single character that is not a line break character $ Assert position at the end of the string (or before the line break at the end of the string, if any) \s匹配单个“空白字符”（空格、制表符、换行符等） *在零次和无限次之间，尽可能多次，根据需要回馈（贪婪） -按字面意思匹配字符“-” \s匹配单个“空白字符”（空格、制表符、换行符等） *在零次和无限次之间，尽可能多次，根据需要回馈（贪婪） . 匹配不是换行符的任何单个字符 . 匹配不是换行符的任何单个字符 _按字面意思匹配字符“u” . 匹配不是换行符的任何单个字符 . 匹配不是换行符的任何单个字符 $Assert位置位于字符串末尾（或字符串末尾的换行符之前，如果有）

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对不起，我是新手，也许我不清楚。并不是在同一个文件名中有多个此约定的实例，而是分布在不同的文件名中。例如：filename-xx_xx.html或filename2-yy_yy.html或filename3-zz_zz.html//回顾一下，第一个答案就确定了。这太棒了。但是，我发现命名约定有时是不同的，类似于“-xx_xx-yy_zz-X-Y”或“-xx_xx-aa_bb-X-Y”，我想删除所有这些。当我使用您的第一个选项并在中输入此选项而不是“-xx_xx”时，它不起作用。为什么会这样？ \s Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.) * Between zero and unlimited times, as many times as possible, giving back as needed (greedy) - Match the character “-” literally \s Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.) * Between zero and unlimited times, as many times as possible, giving back as needed (greedy) . Match any single character that is not a line break character . Match any single character that is not a line break character _ Match the character “_” literally . Match any single character that is not a line break character . Match any single character that is not a line break character $ Assert position at the end of the string (or before the line break at the end of the string, if any)