PS> Select-String -Pattern EX -CaseSensitive *.txt Case Sensitive Search Match Regular Expression We can change this behaviour by using -CaseSensitve option like below. PS> Get-ChildItem c:\*.txt -Recurse | Select-String -Pattern EX Search Files Recursively Case Sensitive Searchīy default given strings are searched case insensitive. We will provide Get-ChildItem command to provide files recursively to the Select-String command like below. Recursively searching will look given string in all current folder and al subfolders. Now the most advanced file specification is searching files recursively. PS> Select-String -Pattern EX *.txt Search String In Multiple Files Search Files Recursively In this example we will search in all text files by specifying *.txt file name. We can search string in multiple files by providing file name or extension with the help asterisk. In previous example we have searched given string in a single file but real world problems are more than that. \poet.txt Search String In A File Search String In Multiple Files -Pattern specifies the string we are searching for.One of the simplest usage and most used feature is simply searching given string in a file. PS> get-help Select-String Help Search String In A File Help about Select-String can be get with the following command. In this tutorial we will look different use cases with examples of Select-String tool. Powershell provides Select-String commandlet to provide similar features and options the Linux grep tool provides. On the other side Windows operating systems generally lacks this tool and its functionality up to Powershell. This tool is popular amongst Linux system administrators. In the following example we match the IP address regex.Linux provides tool named grep for filter text data or output according to given string or regular expression. The regex term is simply provided with the -Pattern option. Like grep command the Select-String command can be used to match specified Regex. PS> Select-String -Pattern "user","admin","root" -Path "C:\logs" Match Specified Regex In the following example we search one of the “user”,”admin” and “root”. The terms are provided with the -Pattern option and separated with commas. PS> Select-String -Pattern "user" -Path "C:\logs" | Select-Object -First 5 Match One Of the Multiple PatternsĪnother useful case is mathcing one of the provided multiple patterns. In the following example, we select the first 5 matches. The -First option is used to list a specified number of matches from the beginning. We can use The Select-Object command in order to select specific matches. PS> Select-String -Pattern "user" -Path "C:\logs" Select Specified MatchĪ Select-String command may match single or multiple lines where all of them are listed by default. The -Path option is used to specify the path we want to search. The -Pattern option is used to specify the term we want to search. We search the term ” user” in the files located under the ” c:\logs\”. We start with a simple example where we match a simple pattern. In this tutorial, we examine how to use the Select-String command similar to the grep command. Windows PowerShell provides the Select-String command in order to provide the Linux grep command function. PowerShell is the next-generation command-line interface for the Windows operating systems and tries to mimic some popular Linux features and command like grep. The grep command is used to filter file contents for the specified terms and match conditions. One of the most popular and useful commands for Linux is the grep command.
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