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FOR
 
Conditionally perform a command several times. 
syntax-
FOR-Files
 
FOR %%parameter IN (set) DO command
syntax-
FOR-Files-Rooted at Path
 
FOR /R [[drive:]path] %%parameter IN (set) DO command
syntax-
FOR-Folders
 
FOR /D %%parameter IN (folder_set) DO command
syntax-
FOR-List of numbers
 
FOR /L %%parameter IN (start,step,end) DO command
syntax-
FOR-File contents
 
FOR /F ["options"] %%parameter IN (filenameset) DO command
FOR /F ["options"] %%parameter IN ("Text string to process") DO 
command 
syntax-
FOR-Command Results
  
FOR /F ["options"] %%parameter IN ('command to process') DO 
command 
The operation of the FOR command can be summarised as... 

Take a set of data 

Make a FOR Parameter 
%%G
equal to some part of that data 

Perform a command (optionally using the parameter as part of the command). 

Repeat for each item of data 
If you are using the FOR command at the command line rather than in a batch program, use just 
one percent sign: 
%G
instead of 
%%G.
 
“Those who cannot remember the past are condemned to repeat it” - George Santayana 
FORFILES.exe
 (Native command in Vista/Windows7/2008, 
via 
Resource Kit
 for XP) 
Select a file (or set of files) and execute a command on each file. Batch processing. 
Syntax 
FORFILES [/p Path] [/m Mask] [/s] [/c Command] [/d [+ | -] 
{dd/MM/yyyy | dd}]
Key 
/p Path The Path to search (default=current folder) 
/s Recurse into sub-folders 
/C command The command to execute for each file. 
Wrap the command string in double quotes. 
Default = "cmd /c echo @file" 
The Command variables listed below can also be used in 
the 
command string. 
/D date Select 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; 
/D + dd Select files with a last modified date greater than or 
equal to the current date plus "dd" days. (in the 
future) 

/D - dd Select files with a last modified date less than or 
equal to the current date minus "dd" days. (in the 
past) 
A valid "dd" number of days can be any number in 
the range of 0 to 32768. (89 years) 
"+" is taken as default sign if not specified. 
Command Variables: 
@file The name of the file. 
@fname The file name without extension.
@ext Only the extension of the file.
@path Full path of the file. 
@relpath Relative path of the file.
@isdir Returns "TRUE" if a file type is a directory, 
and "FALSE" for files. 
@fsize Size of the file in bytes. 
@fdate Last modified date of the file. 
@ftime Last modified time of the file. 
To include special characters in the command line, use the 
hex code
 for the character in 0xHH 
format (ex. 0x09 is theTAB character, 0x22 is the double quote " character.) so 
"C:\Program 
Files\"
becomes 
^0x22C:\Program^ Files\^0x22
Internal CMD.exe commands must be preceded with "cmd /c". 
If ForFiles finds one or more matches if will return %errorlevel% =0 
If ForFiles finds no matches if will return %errorlevel% =1 and will print
 "ERROR: No files found 
with the specified search criteria."
The old NT4 version of ForFiles used unix style -parameters, and could only match 
dates 
newer
than a specified date using the following command variables names: (which must 
be upper case) @FILE, @FNAME_WITHOUT_EXT, @EXT, @PATH, @RELPATH, @ISDIR, 
@FSIZE, @FDATE, @FTIME 
The Windows 2000 version of ForFiles also used unix-style parameters but is otherwise the 
same as current versions. 
Last modified dates set in the future are not common but can happen when your computer clock 
date/time is changed e.g. due to daylight savings time. 

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