如何多次正则表达式PowerShell

Question

I am just learning powershell and cant find how to run differents regex with powershell.

$input_path = 'C:\site-download\input.txt'
$output_file = 'C:\site-download\output.txt'
$regex = '(?<month>VPIP<\/span><span class=""right"">\d{2}.\d{1})'
$regex2 = '(?<month>VPIP<\/span><span class=""right"">\d{2}.\d{1})'
$regex3 = '(?<month>VPIP<\/span><span class=""right"">\d{2}.\d{1})'
$regex... = '(?<month>VPIP<\/span><span class=""right"">\d{2}.\d{1})'

select-string -Path $input_path -Pattern $regex -AllMatches | % { $_.Matches} | % { $_.Value }| 
Foreach-Object {$_ -replace '</span><span class=""right"">', ' = '} > $output_file

$regex works good, but how can i add $regex2 and $regex3 ... to outputfile?

Thanks

Answer 1

You just need a small change to your last section of your pipeline. Instead of using > $output_file just pipe the output of the foreach loop to Out-File cmdlet. So you should be able to have your last line of code look like this:

select-string -Path $input_path -Pattern $regex -AllMatches | 
    % { $_.Matches} | % { $_.Value } |
    Foreach-Object {$_ -replace '</span><span class=""right"">', ' = '} | 
    Out-File $output_file