PowerShell的 - 对一个数组LIKE [英] Powershell - LIKE against an array

问题描述

有关正在处理每一个文件，它的名字被检查，以满足该条件。例如，给定的过滤器下面的列表：

For every file being processed, its name is being checked to satisfy the condition. For example, given the following list of filters:

$excludeFiles = @"
aaa.bbb
ccccc.*
ddddd???.exe
"@ | SplitAndTrim;

如果它匹配任何的线条应该排除处理的文件。试图避免匹配/正则表达式，因为这个脚本需要被别人修改谁不知道它，有几个地方需要它来实现。

It should exclude a file from processing if it matches any of the lines. Trying to avoid match/regex, because this script needs to be modifiable by someone who does not know it, and there are several places where it needs to implemented.

$ excludedFiles 和类似的被定义为宗旨此处的字符串。它允许最终用户/操作员粘贴一堆文件名从一CMD / PowerShell窗口。

$excludedFiles and similar are defined as a here-string on purpose. It allows the end user/operator to paste a bunch of file names right from the CMD/Powershell window.

看来，PowerShell不接受般针对一个数组，所以我不能写这样的：

It appears that Powershell does not accept -like against an array, so I cannot write like this:

"ddddd000.exe" -like @("aaa.bbb", "ccccc.*", "ddddd???.exe")

我错过了一个选择吗？如果它本身不被支持PowerShell的，什么来实现它的最简单的方法？

Did I miss an option? If it's not natively supported by Powershell, what's the easiest way to implement it?

推荐答案

您可以对名称的集合进行模式匹配，但不反对的模式列表。试试这个：

You can perform a pattern match against a collection of names, but not against a list of patterns. Try this:

foreach($pattern in $excludeFiles)
{
    if($fileName -like $pattern) {break}
}

下面就是如何将它包装成一个功能：

Here is how it can be wrapped into a function:

function like($str,$patterns){
    foreach($pattern in $patterns) { if($str -like $pattern) { return $true; } }
    return $false;
}

这篇关于PowerShell的 - 对一个数组LIKE的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！