英文:
Why does PowerShell function work in Windows but not Linux?
问题
我编写了一些PowerShell实用函数，用于在控制台上将PATH和类似PATH的环境变量的组件分别显示在不同行上。它们在Windows中运行正常，但在Linux中会产生意外结果。
我将以下函数放在了每个系统上的$PROFILE文件中。
Function Split-EnvPath {
param ($EnvPath)
$EnvPath -split [IO.Path]::PathSeparator
}
Function Show-Path {
Split-EnvPath $env:Path
}
Function Show-PSPath {
Split-EnvPath $env:PSModulePath
}
所有三个函数在Windows中都可以正常工作，但在Linux中，Show-Path 只会显示一个空行；在Linux PowerShell命令行中输入 Split-EnvPath $env:Path 会产生你所期望的结果。我发现 $env:Path 的值是 null，但我无法猜出原因。我猜想可能是脚本访问环境时出了问题，但为什么 Show-PSPath 没有相同的问题呢？
英文:
I wrote a couple of PowerShell utility functions to display the components of PATH and PATH-like environment variables to the console on separate lines. They work in Windows, but have unexpected results in Linux.
I put the following functions in my $PROFILE file on each system.
Function Split-EnvPath {
param ($EnvPath)
$EnvPath -split [IO.Path]::PathSeparator
}
Function Show-Path {
Split-EnvPath $env:Path
}
Function Show-PSPath {
Split-EnvPath $env:PSModulePath
}
All three functions work in Windows, but Show-Path doesn't show anything but a blank line on Linux; Typing Split-EnvPath $env:Path in the Linux PowerShell command line does what you'd expect it to. I figured out that the value of $env:Path is null, but I can't guess why. I assume there's something wrong with the script accessing the environment, but why wouldn't Show-PSPath have the same issue?
答案1
得分: 3
Linux是一个区分大小写的操作系统。在这里，"PATH"和"Path"是不同的。
所以，不要使用"Path"，而是使用"PATH"。
尝试以下命令：
$env:PATH
在此处阅读更多关于Linux区分大小写的信息：
https://www.linuxquestions.org/questions/linux-general-1/why-is-linux-case-sensitive-125995/
英文:
Linux is a case-sensitive Operating System. Here "PATH" and "Path" are different.
So instead of "Path", use "PATH".
Try the below command:
$env:PATH
Read more about Linux case sensitivity here:
https://www.linuxquestions.org/questions/linux-general-1/why-is-linux-case-sensitive-125995/
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