POWERSHELL GREP A LINE PDF

One example would be to format the output in a much easier-to-read layout by piping the result into Format-List or Out-GridView. String processing of matchesīecause you can pass the result of Select-String to a variety of cmdlets, you have almost unlimited possibilities to process the results. To get all matches, you have to add the -AllMatches switch. The example below shows the exact matches: Select-String -Path *.* -Pattern 'DO.*=' | Select Matchesīy default, you only see the first match in each line. With complex regular expressions, you are often uncertain about the strings they actually match.

If you work with regular expressions, Matches is another particularly helpful property. (The parameter -Context also displays lines before and after the line with the match.)įor example, the command below only displays filenames and lines that contain the search string: Select-String -Path index.html -SimpleMatch 'Home' | Select FileName, LineNumber Usage of MatchInfo propertiesįor instance, properties are useful for changing the output of the cmdlet if you are unhappy with the relatively confusing presentation of path, filename, and line number of Select-String. If you pass the output of Select-String to Get-Member, you’ll receive a list of all methods and properties. Compared to flat text, objects have the advantage of offering methods and properties that allow you to process their output in a more sophisticated way. Hopefully well get some tooling to make it a bit more convenient. docker logs nginx > stdout.log 2>stderr.log cat stdout.log grep '127.' IMO its kinda messy because you need to create and delete these potentially very large files. Search results as MatchInfo objectsĪs opposed to text-oriented tools such as find, a cmdlet returns an object (in the case of Select-String of the type MatchInfo). Here is the simplest way I can see to search an nginx container log. However, you can accomplish this by piping the output of the Get-ChildItem cmdlet into Select-String: Get-ChildItem *.* -Exclude *.pdf -Recurse | Select-String -Pattern 'DO.*='īecause Get-ChildItem selects the files, Select-String only has to take care of the search pattern. In contrast to find and findstr, Select-String cannot search recursively in subdirectories.

POWERSHELL GREP A LINE PDF

In the above example, Select-String searches only in files in the current directory, excluding ZIP archives and PDF files.

If you still can’t bear to use PowerShell on Windows, there’s always the Linux Bash Shell on Windows. You may further restrict your search by excluding files with the parameter -Path, together with wildcards: Select-String -Path *.* -Exclude *.pdf,*.zip -Pattern 'DO.*=' -NotMatch Search in subdirectories with Get-ChildItem PowerShell isn’t a Linux/Unix command line, but Microsoft have incorporated many of the concepts from bash. With -NotMatch, PowerShell’s grep counterpart Select-String also supports reverse search, which finds only lines that don’t contain the search pattern. Select-String -Path index.html -SimpleMatch 'Home' Reverse search with -NotMatch

Powershell grep a line