Question

我有50个文件，文件名的格式如下：

Auth

我想将其更改为：

Basic Authentication

我想更新文件名的一部分并添加下划线，而不是名称中的第一个空格。

谢谢

我试图在Powershell中编写脚本

SIGMOID 01012019 - 01082019.XLS
SIGMOID 01012019 - 01022019.XLS

但是会更新每个空白。

Answer 1

也许不是最优雅的解决方案，但也许正是您想要的：

Rename-Item -NewName { $_.name -replace "SIGMOID ","SIGMOID_" }

Answer 2

假设您有以下文件：

SIGMOID 01012019 - 01082019.XLS
SIGMOID 01012019 - 01022019.XLS
SOMETHINGELSE    01012019 - 02022019.XLS
YETANOTHERPREFIX 01012019 - 03022019.XLS

然后以下代码将其重命名：

$sourceFolder = 'THE PATH OF THE ROOTFOLDER THAT STORES THE XLS FILES TO RENAME'   #'#  enter your rootpath here
Get-ChildItem -Path $sourceFolder -File | 
    Where-Object { $_.Name -match '^\w+ +\d{8}.*\.xlsx?' } | 
    ForEach-Object { 
        $_ | Rename-Item -NewName ($_.Name -replace '^(\w+) +(\d{8}.*\.xlsx?)', '$1_$2') -WhatIf
    }

成为

SIGMOID_01012019 - 01082019.XLS
SIGMOID_01012019 - 01022019.XLS
SOMETHINGELSE_02012019 - 01022019.XLS
YETANOTHERPREFIX_03012019 - 01022019.XLS

注意：如果您对结果感到满意，请删除-WhatIf

正则表达式详细信息：

^           Assert position at the beginning of a line (at beginning of the string or after a line break character)
(           Match the regular expression below and capture its match into backreference number 1
   \w       Match a single character that is a “word character” (letters, digits, etc.)
      +     Between one and unlimited times, as many times as possible, giving back as needed (greedy)
)           
\           Match the character “ ” literally
   +        Between one and unlimited times, as many times as possible, giving back as needed (greedy)
(           Match the regular expression below and capture its match into backreference number 2
   \d       Match a single digit 0..9
      {8}   Exactly 8 times
   .        Match any single character that is not a line break character
      *     Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
   \.       Match the character “.” literally
   xls      Match the characters “xls” literally
   x        Match the character “x” literally
      ?     Between zero and one times, as many times as possible, giving back as needed (greedy)
)

Answer 3

将我的评论变成答案

仅在第一个空格处拆分名称，并在下划线处加入
'* *'确保文件名中至少有一个空格。

Get-ChildItem '* *' | 
     Rename-Item -NewName {($_.Name -split ' ',2 -join '_')} -Whatif

如果输出看起来正常，请删除-WhatIf

在连续运行中，这会将示例中的-更改为_-等。

为避免出现这种情况，您需要使用Where-Object来排除带下划线的文件。

Get-ChildItem '* *' | 
  Where-Object Name -notmatch '^\S+_' |
     Rename-Item -NewName {($_.Name -split ' ',2 -join '_')} -Whatif

Answer 4

嗯，如何更换两次：

'SIGMOID 01012019 - 01082019.XLS' -replace ' ','_' -replace '_-_',' - '

SIGMOID_01012019 - 01082019.XLS

或（替换两边没有破折号的空间）：

'SIGMOID 01012019 - 01082019.XLS' -replace '[^-] [^-]','_'

SIGMOI_1012019 - 01082019.XLS

尝试使用重命名项-whatif ...

仅将一部分文件名更改为多个文件的名称

4 个答案: