Get string values after a pattern using PowerShell

Question

I want to get the string which are there after $ctrl in below html code snippet:

 <div ng-if="$ctrl.CvReportModel.IsReady">
                              ng-click="$ctrl.confirmation()"></cs-page-btn>
                 <cs-field field="$ctrl.CvReportModel.Product" ng-model="$ctrl.UploadedFile.Product"></cs-field>
                 <cs-field field="$ctrl.CvReportModel.Month" ng-model="$ctrl.UploadedFile.Month"></cs-field>

So I am trying to get output like:

CvReportModel.IsReady
confirmation()
CvReportModel.Product
CvReportModel.Month

I am trying to do it using Get-Content and Select-String but still not able to get the desired output.

Martin Brandl · Accepted Answer · 2016-07-14 14:32:28Z

4

Use the Get-Content cmdlet to read your file and use a regex to fetch your desired content:

$content = Get-Content 'your_file_path' -raw
$matches = [regex]::Matches($content, '"\$ctrl\.([^"]+)')
$matches | ForEach-Object {
    $_.Groups[1].Value
}

Regex:

"\$ctrl\.[^"]+

Regular expression visualization

Output:

CvReportModel.IsReady
confirmation()
CvReportModel.Product
UploadedFile.Product
CvReportModel.Month
UploadedFile.Month

Another approach using the Select-String cmdlet and a regex with positive lookbehind:

Select-String -Path $scripts.tmp -Pattern '(?<=\$ctrl\.)[^"]+' | 
    ForEach-Object { $_.Matches.Value }

Output:

CvReportModel.IsReady
confirmation()
CvReportModel.Product
CvReportModel.Month

Note: This will only return the first $ctrl.* match of each line. But since this matches your desired output it could be usefull for you.

edited Jul 14, 2016 at 14:32

answered Jul 14, 2016 at 14:24

Martin Brandl

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1 Comment

harishr Over a year ago

what if I want all the matches on a line?

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