Deletes the contents of an item, such as deleting the text from a file, but does not delete the item. (Clear-Content)
NAMEClear-ContentSYNOPSISDeletes the contents of an item, such as deleting the text from a file, but does not delete the item.SYNTAXClear-Content [-LiteralPath] <string[]> [-Credential <PSCredential>] [-Exclude <string[]>] [-Filter <string>] [-Force] [-Include <string[]>] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>] Clear-Content [-Path] <string[]> [-Credential <PSCredential>] [-Exclude <string[]>] [-Filter <string>] [-Force] [-Include <string[]>] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]DESCRIPTIONThe Clear-Content cmdlet deletes the contents of an item, such as deleting the text from a file, but it does not delete the item. As a result, the item exists, but it is empty. Clear-Content is similar to Clear-Item, but it works on files instead of on aliases and variables.PARAMETERS-Credential <PSCredential> Specifies a user account that has permission to perform this action. The default is the current user. Type a user name, such as "User01" or "Domain01\User01", or enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, you will be prompted for a password. This parameter is not supported by any providers installed with Windows PowerShell. Required? false Position? named Default value Accept pipeline input? true (ByPropertyName) Accept wildcard characters? false -Exclude <string[]> Omits the specified items. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as "*.txt". Wildcards are permitted. Required? false Position? named Default value Accept pipeline input? false Accept wildcard characters? false -Filter <string> Specifies a filter in the provider's format or language. The value of this parameter qualifies the Path parameter. The syntax of the filter, including the use of wildcards, depends on the provider. Filters are more efficient than other parameters, because the provider applies them when retrieving the objects, rather than having Windows PowerShell filter the objects after they are retrieved. Required? false Position? named Default value Accept pipeline input? false Accept wildcard characters? false -Force [<SwitchParameter>] Allows the cmdlet to clear the file contents even if the file is read-only. Implementation varies from provider to provider. For more information, see about_Providers. Even using the Force parameter, the cmdlet cannot override security restrictions. Required? false Position? named Default value Accept pipeline input? false Accept wildcard characters? false -Include <string[]> Clears only the specified items. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as "*.txt". Wildcards are permitted. Required? false Position? named Default value Accept pipeline input? false Accept wildcard characters? false -LiteralPath <string[]> Specifies the paths to the items from which content is deleted. Unlike Path, the value of LiteralPath is used exactly as it is typed. No characters are interpreted as wildcards. If the path includes escape characters, enclose it in single quotation marks. Single quotation marks tell Windows PowerShell not to interpret any characters as escape sequences. Required? true Position? 1 Default value Accept pipeline input? true (ByPropertyName) Accept wildcard characters? false -Path <string[]> Specifies the paths to the items from which content is deleted. Wildcards are permitted. The paths must be paths to items, not to containers. For example, you must specify a path to one or more files, not a path to a directory. Wildcards are permitted. This parameter is required, but the parameter name ("Path") is optional. Required? true Position? 1 Default value Accept pipeline input? true (ByPropertyName) Accept wildcard characters? false -Confirm [<SwitchParameter>] Prompts you for confirmation before executing the command. Required? false Position? named Default value Accept pipeline input? false Accept wildcard characters? false -WhatIf [<SwitchParameter>] Describes what would happen if you executed the command without actually executing the command. Required? false Position? named Default value Accept pipeline input? false Accept wildcard characters? false -UseTransaction [<SwitchParameter>] Includes the command in the active transaction. This parameter is valid only when a transaction is in progress. For more information, see about_Transactions. Required? false Position? named Default value Accept pipeline input? false Accept wildcard characters? false <CommonParameters> This cmdlet supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, WarningVariable, OutBuffer and OutVariable. For more information, type, "get-help about_commonparameters".INPUTSNone You cannot pipe objects to Clear-Content.OUTPUTSNone This cmdlet does not return any objects.NOTESYou can also refer to Clear-Content by its built-in alias, "clc". For more information, see about_Aliases. If you omit the -Path parameter name, the value of Path must be the first parameter in the command. For example, "clear-content c:\mydir\*.txt". If you include the parameter name, you can list the parameters in any order. You can use Clear-Content with the Windows PowerShell File System provider and with other providers that manipulate content. To clear items that are not considered to be content, such as items managed by the Windows PowerShell Certificate or Registry providers, use Clear-Item. The Clear-Content cmdlet is designed to work with the data exposed by any provider. To list the providers available in your session, type "Get-PsProvider". For more information, see about_Providers.Examples
EXAMPLE 1C:\PS>clear-content ..\SmpUsers\*\init.txtDescription----------- This command deletes all of the content from the "init.txt" files in all subdirectories of the SmpUsers directory. The files are not deleted, but they are empty.EXAMPLE 2C:\PS>clear-content -path * -filter *.log -forceDescription----------- This command deletes the contents of all files in the current directory with the ".log" file name extension, including files with the read-only attribute. The asterisk (*) in the path represents all items in the current directory. The Force parameter makes the command effective on read-only files. Using a filter to restrict the command to files with the ".log" file name extension instead of specifying "*.log" in the path makes the operation faster.EXAMPLE 3C:\PS>clear-content c:\Temp\* -Include Smp* -Exclude *2* -whatifDescription----------- This command requests a prediction of what would happen if you submitted the command: "clear-content c:\temp\* -include smp* -exclude *2*". The result lists the files that would be cleared; in this case, files in the Temp directory whose names begin with "Smp", unless the file names include a "2". To execute the command, run it again without the Whatif parameter. RELATED LINKS Online version: http://go.microsoft.com/fwlink/?LinkID=113282 about_Providers Get-Content Set-Content Add-Content Get-Item C:\Windows>powershell get-help Clear-ItemProperty -full
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