![]() ![]() For more information, see about_Automatic_Variables. This example searches for a string in a Windows event log. Example 5: Search for a string in a Windows event log The function's Select-String command displays the output Path parameter uses the $PSHelp variable to get the path. The Select-String command in the function uses the Path and Pattern parameters. Specifies each *.txt file in the directory. $PSHOME is the PowerShell installation directory with the subdirectory en-US that The $PSHelp variable stores the path to the PowerShell helpįiles. From the > prompt,Īdd each statement and press Enter as shown in the example. Press Enter to begin adding statements to the function. The function is created on the PowerShell command line. Select-String -Path $PSHelp -Pattern 'About_'Ĭ:\Program Files\PowerShell\7\en-US\:67: The titles of conceptual topics begin with "About_".Ĭ:\Program Files\PowerShell\7\en-US\:70: Get-Help About_Ĭ:\Program Files\PowerShell\7\en-US\:93: Get-Help About_Modules : Displays help about PowerShell modules.Ĭ:\Program Files\PowerShell\7\en-US\:97: about_Updatable_Help For thisĮxample, the function only exists in the PowerShell session. This example creates a function to search for a pattern in the PowerShell help files. Example 4: Use Select-String in a function Number precede each line of content that contains a match for the Pattern parameter. Select-String displays the output in the PowerShell console. Used as an escape character and is necessary because the question mark ( ?) is a regular expression Pattern parameter specifies to match a question mark ( ?) in each file. Includes the subdirectory en-US and specifies each *.txt file in the directory. Uses the variable $PSHOME that specifies the PowerShell directory. The Select-String cmdlet uses two parameters, Path and Pattern. ![]() Ĭ:\Program Files\PowerShell\6\en-US\:50: or go to: Select-String -Path "$PSHOME\en-US\*.txt" -Pattern '\?'Ĭ:\Program Files\PowerShell\6\en-US\:27: beginning at. For more information, seeĪbout_Regular_Expressions. In this example, multiple files are searched to find matches for the specified pattern. The file nameĪnd line number precede each line of content that contains a match for the Pattern parameter. The current directory with the file name extension. Select-String uses the Path parameter with the asterisk ( *) wildcard to search all files in Text files in the current directory, Alias.txt and Command.txt. In this example, Get-Alias and Get-Command are used with the Out-File cmdlet to create two Output displays the lines in those files that include the specified string. ![]() txt file name extension in the current directory. This command searches all files with the. Select-String displays HELLO in the PowerShell console. Parameter and specifies that the string in the pattern isn't interpreted as a regular expression. Specifies that the case must match only the upper-case pattern. Select-String uses the Pattern parameter to specify HELLO. The text strings Hello and HELLO are sent down the pipeline to the Select-String cmdlet. 'Hello', 'HELLO' | Select-String -Pattern 'HELLO' -CaseSensitive -SimpleMatch This example does a case-sensitive match of the text that was sent down the pipeline to the Examples Example 1: Find a case-sensitive match If the file has no BOM, it assumes the encoding is UTF8. Select-String uses the byte-order-mark (BOM) toĭetect the encoding format of the file. When you're searching files of Unicode text. You can also specify that Select-String should expect a particular character encoding, such as Select-String can be used to display all text that doesn't match the specified pattern. Select-String can display all the text matches or stop after the first match in each input file. You can direct Select-String to find multiple matches per line, display textīefore and after the match, or display a Boolean value (True or False) that indicates whether a Line and, for each match, it displays the file name, line number, and all text in the lineĬontaining the match. By default, Select-String finds the first match in each You can use Select-String similar to grep in UNIX or findstr.exe in The Select-String cmdlet uses regular expression matching to search for text patterns in input ![]()
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