如何查找变量并使用结果在PowerShell中进行匹配？

Question

$installLocation = "C:\hello\world" 
$packageName = "hello" 

Write-Host "if ("$installLocation" -match '${packageName}|bla') {" 

if ("$installLocation" -match '${packageName}|bla') { 
    Write-Host "hello"; 
} 

if ("$installLocation" -match 'hello|bla') { 
    Write-Host "world"; 
} 

当前结果

if (C:\hello\world -match 'hello|bla') { 
world 

预期成果

if (C:\hello\world -match 'hello|bla') { 
hello 
world 

Answer 1

您需要使用的变量左右双引号。

试试这个：

$packageName = "hello" 
echo '${packageName}|bla' 
echo "${packageName}|bla" 

结果是：

${packageName}|bla 
hello|bla 

所以要修复脚本，使用：

if ("$installLocation" -match "${packageName}|bla") { 
    Write-Host "hello"; 
} 

其给出结果：

hello 
world