问题描述
在PowerShell中尝试执行一个命令时出现此错误:
I am getting this error when trying exec one command in PowerShell:
我正在尝试exec此命令:
powershell.exe Start-Process -FilePath "C:\Windows\System32\attrib +h +s "%CD%"" -Verb runAs
有人可以帮我弄清楚为什么会发生这种情况以及如何解决吗?
Can someone please help me figuring out why this is happening and how to solve it?
推荐答案
Start-Process cmdlet的-FilePath参数需要一个可执行文件 的名称或路径，而不是一个 entire命令行.
The -FilePath parameter of the Start-Process cmdlet expects the name or path of an executable file by itself, not an entire command line.
要传递给通过-FilePath指定的可执行文件的自变量必须通过-ArgumentList作为数组单独传递 . (-Args)参数.
The arguments to pass to the executable specified via -FilePath must be passed separately, as an array, via the -ArgumentList (-Args) parameter.
从cmd.exe(批处理文件)进行调用时，从概念上讲，更干净的方法是在单个"括起来的参数中传递要由 PowerShell 进行评估的整个命令行:
When calling from cmd.exe (a batch file), it's conceptually cleaner to pass the entire command line to be evaluated by PowerShell in a single, "-enclosed argument:
powershell.exe -Command "Start-Process -Verb RunAs -FilePath attrib.exe -Args +h, +s, '\"%CD%\"'"
请注意需要转义%CD%值 ，方法是先将其封装在'中，然后再放在\"中: PowerShell本身会将值识别为单个参数，而嵌入式\"引号可确保最终目标程序attrib.exe也将该值也视为单个参数.
Note the need to escape the %CD% value doubly, by enclosing it in ' for the sake of PowerShell first, then in \" inside that: The outer ' ensures that PowerShell itself recognizes the value as a single argument, and the embedded \" quoting ensures that the ultimate target program, attrib.exe, sees the value as a single argument too.
不幸的是，这种双重转义的需求是不幸的，并且不是必须的-在中对此进行了讨论GitHub问题.
This need for double escaping is unfortunate and shouldn't be necessary - it is discussed in this GitHub issue.
这篇关于如何使用需要从命令提示符/批处理文件中引用的参数来调用PowerShell Start-Process命令?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！