Powershell: Filter the contents of a file by an array of strings

Question

Riddle me this:

I have a text file of data. I want to read it in, and only output lines that contain any string that is found in an array of search terms.

If I

Answer 1

Any help?

$a_Search = @(
    "TextI'mLookingFor",
    "OtherTextI'mLookingFor",
    "MoreTextI'mLookingFor"
    )


[regex] $a_regex = ‘(‘ + (($a_Search |foreach {[regex]::escape($_)}) –join “|”) + ‘)’

(get-content afile) -match $a_regex