Question

我从.xml文件中读取了一个字符串。它看起来像这样：

<ExcludedFiles>'a.txt','b.txt','c.txt'</ExcludedFiles>

将分配变量$ exlude：

$exclude = 'a.txt','b.txt','c.txt'

我想将它传递给数组'@'，以便在Get-item中使用“-excelude”参数：

Get-ChildItem $_ -name -exclude $exclude ...

但它不起作用。也许我应该逃避“，”？

它仅适用于直接分配，例如：

$exclude =  @('a.txt','b.txt','c.txt')

非常感谢您的提示！最好的问候

Answer 1

我做了一些例子，你可以看到它取决于powershell如何看到这个值，如果它是一个字符串它不会工作你需要在数组中转换它，也不要忘记剥离“或”。

解决方案：

$exclude = "'a.txt','b.txt','c.txt'".Split(',').Replace("'","")

示例输出：

Example 1 | "'a.txt','b.txt','c.txt'"
' a .
String   System.Object
String   System.Object
a.txt                 
b.txt                 
c.txt                 
d.txt                 
e.txt                 
f.txt                 

Example 2 | "'a.txt','b.txt','c.txt'".Split(',')
'a.txt' 'b.txt' 'c.txt'
String[] System.Array 
String   System.Object
String   System.Object
String   System.Object
a.txt                 
b.txt                 
c.txt                 
d.txt                 
e.txt                 
f.txt                 

Example 3 | 'a.txt','b.txt','c.txt'
a.txt b.txt c.txt
Object[] System.Array 
String   System.Object
String   System.Object
String   System.Object
d.txt                 
e.txt                 
f.txt                 

Example 4 | @('a.txt','b.txt','c.txt')
a.txt b.txt c.txt
Object[] System.Array 
String   System.Object
String   System.Object
String   System.Object
d.txt                 
e.txt                 
f.txt                 

Solution | "'a.txt','b.txt','c.txt'".Split(',').Replace("'","")
a.txt b.txt c.txt
Object[] System.Array 
String   System.Object
String   System.Object
String   System.Object
d.txt                 
e.txt                 
f.txt

示例代码：

cls 

#test setup
New-Item -Path $env:TEMP -Name 'testfolder' -Force -ItemType Directory | Out-Null
$path = Join-Path -Path $env:TEMP -ChildPath 'testfolder\' 
@('a.txt','b.txt','c.txt','d.txt','e.txt','f.txt') | % { New-Item -Path $path -Name $_ -Force | Out-Null}

#test code

"
Example 1 | `"'a.txt','b.txt','c.txt'`""
$exclude1 = "'a.txt','b.txt','c.txt'"
"$($exclude1[0]) $($exclude1[1]) $($exclude1[2])"
$exclude1.GetType() | select Name, BaseType 
$exclude1 | % {$_.GetType()} | select Name, BaseType 
Get-ChildItem -Path $path -Exclude $exclude1


"
Example 2 | `"'a.txt','b.txt','c.txt'`".Split(',')"
$exclude2 = "'a.txt','b.txt','c.txt'".Split(',')
"$($exclude2[0]) $($exclude2[1]) $($exclude2[2])"
$exclude2.GetType() | select Name, BaseType 
$exclude2 | % {$_.GetType()} | select Name, BaseType 
Get-ChildItem -Path $path -Exclude $exclude2

"
Example 3 | 'a.txt','b.txt','c.txt'"
$exclude3 = 'a.txt','b.txt','c.txt'
"$($exclude3[0]) $($exclude3[1]) $($exclude3[2])"
$exclude3.GetType() | select Name, BaseType 
$exclude3 | % {$_.GetType()} | select Name, BaseType
Get-ChildItem -Path $path -Exclude $exclude3 

"
Example 4 | @('a.txt','b.txt','c.txt')"
$exclude4 = @('a.txt','b.txt','c.txt')
"$($exclude4[0]) $($exclude4[1]) $($exclude4[2])"
$exclude4.GetType() | select Name, BaseType 
$exclude4 | % {$_.GetType()} | select Name, BaseType
Get-ChildItem -Path $path -Exclude $exclude4

"
Solution | `"'a.txt','b.txt','c.txt'`".Split(',').Replace(`"'`",`"`")"
$exclude = "'a.txt','b.txt','c.txt'".Split(',').Replace("'","")
"$($exclude[0]) $($exclude[1]) $($exclude[2])"
$exclude.GetType() | select Name, BaseType 
$exclude | % {$_.GetType()} | select Name, BaseType
Get-ChildItem -Path $path -Exclude $exclude

Powershell使用@来排除多个文件

1 个答案: