Question

我正在尝试将文件夹路径存储为PowerShell中的变量，以便我可以在整个脚本中将该路径重用于各种任务：

# Local storage location    
$env:localTempFolder="TEMP"

# Download some executable and store it in the local temp folder
$env:downloadURL="http://somepage.com/foo.exe"
Invoke-WebRequest $env:downloadURL -OutFile $env:localTempFolder/foo.exe

# Execute the executable using the $localTempFolder variable
./$env:localTempFolder/foo.exe

最后一条语句出现以下错误：

.\$env:localTempFolder\.exe : The term '.\$env:pci_TEMP\foo.exe' is not
recognized as the name of a cmdlet, function, script file, or operable
program. Check the spelling of the name, or if a path was included, verify
that the path is correct and try again.

At line:1 char:1
+ .\$env:pci_TEMP\foo.exe
+ ~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : ObjectNotFound: (.\$env:localTempFolder\foo.exe:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException

我尝试在最后一个语句中添加括号，引号等的各种组合，但似乎没有把它弄好。我做错了什么，我从哪里开始？

Answer 1

作为PetSerAl pointed it out,，您错过了呼叫运营商 &。我还建议您使用Join-Path cmdlet组合路径：

& (Join-Path $env:localTempFolder 'foo.exe')

在执行路径中使用变量

1 个答案: