regex - PowerShell -match 与 -like

Question

阅读 official docs 很明显，PowerShell -match 运算符比 -like 更强大(由于正则表达式)。其次，根据这篇文章 https://www.pluralsight.com/blog/software-development/powershell-operators-like-match ，它似乎快了大约 10 倍。

是否有特定情况下我应该更喜欢 -like 而不是 -match ？如果没有，我为什么要使用 -like ？是否因为历史原因而存在？

Answer 1

从 Differences Between -Like and -Match 看到这个解释

In a nutshell, if you are thinking, 'I am probably going to need a wildcard to find this item', then start with -Like. However, if you are pretty sure of most of the letters in the word that you are looking for, then you are better off experimenting with -Match.

Here is a more technical distinction: -Match is a regular expression, whereas -Like is just a wildcard comparison, a subset of -Match.

因此，当您不确定内部可以包含哪些字符类(即数字、字母、标点符号等)时，当您只想匹配任何字符时，您应该使用 -Like 及其通配符。
如果您知道开头必须有一个数字，后跟 1+ 个冒号序列，然后是字母数字字符，直到字符串末尾，请使用 -Match 及其强大的 regular expressions 。