Powershell - How to search for Whole Words (or) Exact Matches

问题

this is my requirement.

I need to find if a certain CSS classes is referenced in my Solution which has over 120 aspx pages.

This is the command that we wrote

gci . -include *.aspx -recurse | select-string -pattern ".rtop" -caseSensitive >> D:\CSSResult.txt

However, this matches even words with rtop in middle. That is, if I have a variable named as dirtopy, it comes in the result list. I do not want that.

I want it in the result only if an exact match of .rtop is found.

How do I do it?

Any references or examples would be more than sufficient.

Thanks!

回答1:

Try select-string -pattern "\.rtop\b".

You need to escape the dot, or it will match any character; and the \b word boundary anchor ensures that the word does not continue after rtop.

回答2:

You can use the -simplematch option of select-string to do a literal match instead of regex.

来源：https://stackoverflow.com/questions/5168616/powershell-how-to-search-for-whole-words-or-exact-matches