Forfiles

forfiles is a computer software utility that runs a command for each file system item (file or directory) that matches selection criteria. The command was originally provided as an add-on, in the Windows 98,^[1] Windows NT^{[citation needed]} and Windows 2000^[2] Resource Kits. It became a standard utility with Windows Vista, as part of the new management features.

With no arguments, the command prints the name of every item in the working directory. The command supports the following command-line switches.

/P path

The directory in which to search instead of the working directory. UNC paths (\\machine\share) are not accepted.

/M pattern

Specifies a wildcard matching pattern that selects items for inclusion instead of all items. It results in filtering out items that do not match the pattern. It is matched on the item name (including extension) but not the containing directory path. Without a wildcard, the pattern must exactly match the base name.

Even though most DOS/Windows commands match files with no extension for the pattern *.*, this command treats *.* and * differently. The former only matches an item with a dot in its name, while the latter matches even with no dot or extension.

/S

Match items in subdirectories in addition to the specified directory.

/C command

Command to execute for each matching item. The command string typically must be wrapped in double quotes. The default command is CMD /C ECHO @FILE, which prints, via ECHO, the name of each matching item specified as variable @FILE. See below for supported variables.

A hexadecimal value with a "0x" prefix is treated as an ASCII character code which allows for the use of non-printing or extended ASCII characters. A double quote can be represented as either 0x22 or \".

/D date

Selects based on last modified date. By default, items are selected regardless of modified date.

A date argument is formatted as MM/DD/YYYY or as a number; an age in days (i.e., the day date days before the present date). If the argument begins with a minus (-), only items modified on or before the date are selected (older item / modified earlier). Otherwise, only items modified on or after the given date are selected (younger items / modified later). An explicit plus (+) may be given, but is the default. Note that both modes select items on the given date. There is no way to select items only on a given date (without also either before or after).

/?

Displays help information for the command.

The following variables are replaced before the command is executed with metadata about the matched item.

@file

The name of the item, double quoted.

@fname

The name of the item without extension, double quoted.

@ext

The name extension, double quoted, without leading dot. If an item has multiple extensions, this evaluates to the last one. If the items has no extension, this evaluates to an empty string.

@path

Full path of the matching item, double quoted, including drive letter, and extension (if any).

@relpath

Path of the matching item, double quoted, and relative to the starting directory (given by /P). Each path begins with a dot and backslash (.\).

@isdir

Evaluates to the literal string TRUE if the matching item is a directory, or FALSE if not.

@fsize

Size of the matching item, in bytes. Directories report a size of zero.

@fdate

Date the item was last modified, in the localized date format of the current user.

@ftime

Time the item was last modified, in the localized time format of the current user.

The following command selects log files in the Windows directory 30 days or older, and lists them with their date. Since the command for option /C must be a program, spawning a sub-shell (cmd.exe) via CMD /C is required for shell builtin command ECHO.

C:\>FORFILES /P C:\Windows /M *.LOG /D -30 /C "CMD /C ECHO @FDATE @FILE"
6/12/2015 "iis7.log"
5/28/2015 "msxml4-KB954430-enu.LOG"
5/28/2015 "msxml4-KB973688-enu.LOG"
5/26/2015 "setuperr.log"

The following command deletes the same files.

C:\>FORFILES /P C:\Windows /M *.LOG /D -30 /C "CMD /C DEL @PATH"

• cmd.exe – Shell for Windows NT and other operating systems
• Foreach loop – Control flow statement for traversing items in a collection
• find (Unix) – Shell command for finding files; functionally similar to forfiles
• find (Windows) – Shell command that finds text in files
• grep – Command-line utility for text search; functionally similar to Windows find

• "FORFILES", Microsoft Windows (Computer software), 6.1.7600.16385, Microsoft, 13 July 2009.
• "Forfiles". TechNet. Microsoft. April 17, 2012. Retrieved 28 April 2016.
• Simon Sheppard. "FORFILES.exe". SS64. Retrieved 28 April 2016.

Wikibooks has a book on the topic of: Guide to Windows Commands

• forfiles | Microsoft Docs