Powershell:如何将字符串中的第一个“:”替换为“,”?

Powershell: how to replace first ":" in a string to be ","?

例如,我有一个指示 powershell 脚本编写者的文本文件,每一行如下所示:

Hello world.ps1:John Smith
Dowork.ps1:Blake Benn

我希望在每行中找到第一个“:”并用“,”替换,这样我就可以获得一个 csv 文件,

Hello world.ps1,John Smith
Dowork.ps1,Blake Benn

我尝试使用“-replace”,但失败了:

"Hello World.ps1:John Smith" -replace ":" ","

At line:1 char:43
+ "Hello World.ps1:John Smith" -replace ":" ","
+                                           ~~~
Unexpected token '","' in expression or statement.
    + CategoryInfo          : ParserError: (:) [], 
    ParentContainsErrorRecordException
    + FullyQualifiedErrorId : UnexpectedToken

如何做到这一点?谢谢!

您的 -replace 运算符语法不正确。仔细阅读操作员帮助 - help about_Comparison_Operators。您在查找和替换字符串之间缺少 ,

PS C:\> "Hello World.ps1:John Smith" -replace ":",","
Hello World.ps1,John Smith