有没有办法在Windows中设置递归环境变量？

Question

我的保管箱中有一个应用程序目录 - 我希望能够从命令行访问所有这些目录，而无需设置路径变量的加载和加载。有没有办法设置递归路径变量？我尝试将 ** 放在最后 - 没有乐趣。

Answer 1

您不能在 PATH 环境变量中使用占位符或类似内容。它只是目录的串联，没有附加功能。

因此，要么将所有应用程序目录添加到 PATH 环境变量中，要么考虑其他方法来解决问题。例如，您可以将一个目录添加到 PATH 中，并在其中放置启动应用程序的应用程序名称的批处理文件。

Answer 2

为这个11年前的问题注册了一个帐户。

    $path = Read-Host -Prompt "Enter the exact path that needs to be recursively added to the PATH env:"
    $items = gci -Path $path -Recurse -Directory -name
    $nuPath = $env:Path
    $r = 0
    write-Host "Env started as $nuPath"
    foreach ($iitem in $items){
    $addpath = ($path + "\" + $iitem)
    $executabledir = $addpath + '\' + "*.exe"
    if(test-path $executabledir){
    Write-Host $addpath
    $regexAddPath = [regex]::Escape($addPath)
    $arrPath = $nuPath -split ';' | Where-Object {$_ -notMatch "^$regexAddPath\\?"}
    $nuPath = ($arrPath + $addPath) -join ';'
    ++$r
    }
    }
    $result = ($path + ";" + $nupath) -join ';'
    $temp = New-TemporaryFile
    $result.ToString() > $temp
    Start-Process notepad.exe -ArgumentList $temp.FullName
    
    $title    = 'WARNING'
    $question = "Your new environmental variable for PATH will be in the notepad window that popped up. are you sure you want to continue?"
    $choices  = '&Yes', '&No'
    
    $decision = $Host.UI.PromptForChoice($title, $question, $choices, 1)
    if ($decision -eq 0 -and $r -gt 5) {
        $title    = 'Are you really sure?'
        $question = 'This is larger than 5 entries and this can ruin your day if you mess it up. Just doublechecking everything is OK'
        $choices  = '&Yes', '&No'
    
        $decision = $Host.UI.PromptForChoice($title, $question, $choices, 1)
            if ($decision -eq 0) {
            $env:Path > $HOME\pathbkup.txt
            [Environment]::SetEnvironmentVariable("Path", $result, "Machine")
            }
            else {
            Write-Host 'cancelled'
            }
    }
    else {
        Write-Host 'cancelled'
         }
    Remove-Item $temp