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I'm using powershell to "grep" my source code for a particular string. If the string is in the file, I would like the name of the file, not the line of code that contains the string.
I would also like the name of the file, just once, not listed for as many times as the file exists.
I'm currently using:
gci . -include "*.sql" -recurse | select-string -pattern 'someInterestingString' Now I understand that the output of select-string is some sort of ojbect, and what I'm seeing in the console is, i'm guessing, the ToString() of that object. I assume that I could use format-table to control the output of the select-string, and I suppose sort to get distinct values only.
but that's a lot of guessing.
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Select-String can be used to display all text that doesn't match the specified pattern. You can also specify that Select-String should expect a particular character encoding, such as when you're searching files of Unicode text. Select-String uses the byte-order-mark (BOM) to detect the encoding format of the file.
You can use it like Grep in UNIX and Findstr in Windows with Select-String in PowerShell. Select-String is based on lines of text. By default, Select-String finds the first match in each line and, for each match, it displays the file name, line number, and all text in the line containing the match.
To search for multiple matches in each file, we can sequence several Select-String calls: Get-ChildItem C:\Logs | where { $_ | Select-String -Pattern 'VendorEnquiry' } | where { $_ | Select-String -Pattern 'Failed' } | ...
When you need to search through a string or log files in Linux we can use the grep command. For PowerShell, we can use the grep equivalent Select-String . We can get pretty much the same results with this powerful cmdlet. Select-String uses just like grep regular expression to find text patterns in files and strings.
I don't think I completely understand what you're trying to do. If you want the output grouped by file, you can pipe into Format-Table with the -GroupBy parameter:
gci . -include "*.sql" -recurse ` | select-string -pattern 'someInterestingString' ` | Format-Table -GroupBy Path If you want to get only the names of the files that match without any other info, you can use Select-Object with the -Unique parameter:
gci . -include "*.sql" -recurse ` | select-string -pattern 'someInterestingString' ` | Select-Object -Unique Path If you're interested in only the file name, regardless whether the name itself appears multiple times in your hierarchy, then you can select the Filename property instead.
Note: The Get-Member cmdlet is a great help in figuring out what properties exist on an object:
gci . -include "*.sql" -recurse ` | select-string -pattern 'someInterestingString' ` | Get-Member You can also use its alias gm instead.
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When I'm doing this I just use the -List parameter - yes it does display the line of code but you only get one line per file (no matter how many matches there are):
PS> Get-ChildItem . -r *.cs | Select-String XmlNode -list Commands\SnapinHelp\CmdletInfo.cs:27: public List<XmlNode> InputTypes; Commands\SnapinHelp\GetSnapinHelpCommand.cs:124: WriteXmlNodeList(c... Commands\SnapinHelp\ParameterInfo.cs:73: XmlNode FindNode(XmlDocument doc) Commands\Xml\XmlCommandBase.cs:65: RegisterInputType<XmlNode>(Proce... If you want the path:
PS> Get-ChildItem . -r *.cs | Select-String XmlNode -list | Format-Table Path Path -------- C:\Users\Keith\Pscx\Src\PscxSnapin\Commands\SnapinHelp\CmdletInfo.cs C:\Users\Keith\Pscx\Src\PscxSnapin\Commands\SnapinHelp\GetSnapinHelpCommand.cs C:\Users\Keith\Pscx\Src\PscxSnapin\Commands\SnapinHelp\ParameterInfo.cs C:\Users\Keith\Pscx\Src\PscxSnapin\Commands\Xml\XmlCommandBase.cs Or if you really only want the filename:
PS> Get-ChildItem . -r *.cs | Select-String XmlNode -list | Format-Table Filename Filename -------- CmdletInfo.cs GetSnapinHelpCommand.cs ParameterInfo.cs XmlCommandBase.cs If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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