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Iterating files in DOS using FORFILES.exe

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Iterating files in DOS using FORFILES.exe

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Just came across a nice little command line utility called forfiles.exe.

Very useful for batch file scripting, for example you can use this to schedule deletes of log files from your continuous build output.

C:\Temp>forfiles /C "cmd /c echo @file"

C:\Temp>forfiles /?

FORFILES [/P pathname] [/M searchmask] [/S]
[/C command] [/D [+ | -] {dd/MM/yyyy | dd}]

Selects a file (or set of files) and executes a
command on that file. This is helpful for batch jobs.

Parameter List:
/P pathname Indicates the path to start searching.
The default folder is the current working
directory (.).

/M searchmask Searches files according to a searchmask.
The default searchmask is '*' .

/S Instructs forfiles to recurse into
subdirectories. Like "DIR /S".

/C command Indicates the command to execute for each file.
Command strings should be wrapped in double

The default command is "cmd /c echo @file".

The following variables can be used in the
command string:
@file - returns the name of the file.
@fname - returns the file name without
@ext - returns only the extension of the
@path - returns the full path of the file.
@relpath - returns the relative path of the
@isdir - returns "TRUE" if a file type is
a directory, and "FALSE" for files.
@fsize - returns the size of the file in
@fdate - returns the last modified date of the
@ftime - returns the last modified time of the

To include special characters in the command
line, use the hexadecimal code for the character
in 0xHH format (ex. 0x09 for tab). Internal
CMD.exe commands should be preceded with
"cmd /c".

/D date Selects files with a last modified date greater
than or equal to (+), or less than or equal to
(-), the specified date using the
"dd/MM/yyyy" format; or selects files with ac
last modified date greater than or equal to (+)
the current date plus "dd" days, or less than or
equal to (-) the current date minus "dd" days. A
valid "dd" number of days can be any number in
the range of 0 - 32768.
"+" is taken as default sign if not specified.

/? Displays this help message.

FORFILES /S /M *.txt /C "cmd /c type @file | more"
FORFILES /P C:\ /S /M *.bat
FORFILES /D -30 /M *.exe
/C "cmd /c echo @path 0x09 was changed 30 days ago"
FORFILES /D 01/01/2001
/C "cmd /c echo @fname is new since Jan 1st 2001"
FORFILES /D +12/1/2011 /C "cmd /c echo @fname is new today"
FORFILES /M *.exe /D +1
FORFILES /S /M *.doc /C "cmd /c echo @fsize"
FORFILES /M *.txt /C "cmd /c if @isdir==FALSE notepad.exe @file"

Versions of the tool, if not already installed on your system can be found here… http://winhlp.com/node/180


Published at DZone with permission of Merrick Chaffer, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.


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