Windows command for file size only

Question

Is there a Windows command that will output the size in bytes of a specified file like this?

> filesize test.jpg
65212

I know that the dir command outputs this information, but it outputs other information also.

I could easily write such a program, but I would prefer to use a native Windows command if possible, or only what is available in a fresh install of Windows XP.

Answer 1

If you don't want to do this in a batch script, you can do this from the command line like this:

for %I in (test.jpg) do @echo %~zI

Ugly, but it works. You can also pass in a file mask to get a listing for more than one file:

for %I in (*.doc) do @echo %~znI

Will display the size, file name of each .DOC file.

Answer 2

Use a function to get rid off some limitation in the ~z operator. It is especially useful with a for loop:

@echo off
set size=0
call :filesize "C:\backup\20120714-0035\error.log"
echo file size is %size%
goto :eof

:: Set filesize of first argument in %size% variable, and return
:filesize
  set size=%~z1
  exit /b 0

Answer 3

Try forfiles:

forfiles /p C:\Temp /m file1.txt /c "cmd /c echo @fsize"

The forfiles command runs command c for each file m in directory p.

The variable @fsize is replaced with the size of each file.

If the file C:\Temp\file1.txt is 27 bytes, forfiles runs this command:

cmd /c echo 27

Which prints 27 to the screen.

As a side-effect, it clears your screen as if you had run the cls command.

Answer 4

Since you're using Windows XP, Windows PowerShell is an option.

(Get-Item filespec ).Length 

or as a function

function Get-FileLength { (Get-Item $args).Length }
Get-FileLength filespec

Answer 5

C:\>FORFILES  /C "cmd /c echo @fname @fsize"


C:\>FORFILES  /?

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

Description:
    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 (.).

Answer 6

Create a file named filesize.cmd (and put into folder C:\Windows\System32):

@echo %~z1

Answer 7

Taken from here:

The following command finds folders that are greater than 100 MB in size on the D: drive:

diruse /s /m /q:100 /d d:

The /s option causes subdirectories to be searched, the /m option displays disk usage in megabytes, the /q:100 option causes folders that are greater than 100 MB to be marked, and the /d option displays only folders that exceed the threshold specified by /q.

Use the diskuse command to find files over a certain size. The following command displays files over 100 MB in size on the D: drive:

diskuse D: /x:104857600 /v /s

The /x:104857600 option causes files over 104,857,600 bytes to be displayed and is valid only if you include the /v option (verbose). The /s option means subdirectories from the specified path (in this case, the D: drive) are searched.

Using VBScript

' This code finds all files over a certain size.
' ------ SCRIPT CONFIGURATION ------
strComputer = "**<ServerName>**" 
intSizeBytes = 1024 * 1024 * 500  ' = 500 MB
' ------ END CONFIGURATION ---------
set objWMI = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
set colFiles = objWMI.ExecQuery _
    ("Select * from CIM_DataFile where FileSize > '" & intSizeBytes & "'")
for each objFile in colFiles
    Wscript.Echo objFile.Name & "  " & objFile.Filesize / 1024 / 1024 & "MB"
next

Answer 8

This is not exactly what you were asking about and it can only be used from the command line (and may be useless in a batch file), but one quick way to check file size is just to use dir:

> dir Microsoft.WindowsAzure.Storage.xml

Results in:

Directory of C:\PathToTheFile

08/10/2015  10:57 AM         2,905,897 Microsoft.WindowsAzure.Storage.xml
               1 File(s)      2,905,897 bytes
               0 Dir(s)  759,192,064,000 bytes free

Answer 9

In PowerShell you can do:

$imageObj = New-Object System.IO.FileInfo("C:\test.jpg")    
$imageObj.Length

Answer 10

In a batch file, the below works for local files, but fails for files on network hard drives

for %%I in ("test.jpg") do @set filesize=%~z1

However, it's inferior code, because it doesn't work for files saved on a network drive (for example, \\Nas\test.jpg and \\192.168.2.40\test.jpg). The below code works for files in any location, and I wrote it myself.

I'm sure there are more efficient ways of doing this using VBScript, or PowerShell or whatever, but I didn't want to do any of that; good ol' batch for me!

set file=C:\Users\Admin\Documents\test.jpg
set /a filesize=
set fileExclPath=%file:*\=%

:onemoretime
set fileExclPath2=%fileExclPath:*\=%
set fileExclPath=%fileExclPath2:*\=%
if /i "%fileExclPath%" NEQ "%fileExclPath2%" goto:onemoretime

dir /s /a-d "%workingdir%">"%temp%\temp.txt"
findstr /C:"%fileExclPath%" "%temp%\temp.txt" >"%temp%\temp2.txt"

set /p filesize= <"%temp%\temp2.txt"

echo set filesize=%%filesize: %fileExclPath%%ext%=%% >"%temp%\temp.bat"
call "%temp%\temp.bat"

:RemoveTrailingSpace
if /i "%filesize:~-1%" EQU " " set filesize=%filesize:~0,-1%
if /i "%filesize:~-1%" EQU " " goto:RemoveTrailingSpace

:onemoretime2
set filesize2=%filesize:* =%
set filesize=%filesize2:* =%
if /i "%filesize%" NEQ "%filesize2%" goto:onemoretime2

set filesize=%filesize:,=%
echo %filesize% bytes

SET /a filesizeMB=%filesize%/1024/1024
echo %filesizeMB% MB

SET /a filesizeGB=%filesize%/1024/1024/1024
echo %filesizeGB% GB

Answer 11

In PowerShell you should do this:

(Get-ChildItem C:\TEMP\file1.txt).Length

Answer 12

I'm not sure about remote ones, but for local Windows trough {File Sharing / Network}, %~z does work

for %%x in ("\\ComputerName\temp\temp.txt") do set "size=%%~zx"

More generalized version of this . The previous version may be not requiring enableDelayedExpansion enableExtensions, but can't run in for loops .

• Some clarification --
  • | can't be used to pass an output value to set ; for /f doesn't support some characters in it's subject value (the path to edit), if without in-text Escaping ; for /l doesn't allow to change the count/condition values (after start) ; !<<variableName>>:<<escaped text>>*! doesn't work .
  • at keepOnlyAllBefore1stSpace, %%%%x is passed instead of !nu_f!, because that is needed for the same reason/use as %%%%x is made to be created .

@setLocal enableDelayedExpansion enableExtensions
@echo off

set "file=C:\Users\Admin\Documents\test.jpg"

for %%x in ("!file!") do set "name=%%~nxx"
for %%x in ("!file!") do set "storage=%%~pdx"
    set "storage=!storage:~0,-1!"

dir "!storage!" > "!temp!\fileInfo.txt"

findstr /c:"!name!" "!temp!\fileInfo.txt" > "!temp!\fileInfo_1.txt"
    del "!temp!\fileInfo.txt"
set /p "size=" < "!temp!\fileInfo_1.txt"
    del "!temp!\fileInfo_1.txt"

call :for 1 2 "call :deleteCollumnFromStart size"

call :for 1 1 "call :keepOnlyAllBefore1stSpace %%%%x size"

:removeSpacesFromEnd
    if /i "!size:~-1!" equ " " set "size=!size:~0,-1!"
    if /i "!size:~-1!" equ " " goto removeSpacesFromEnd

echo(!size:,= ! bytes

pause
exit /b


:deleteCollumnFromStart
    set "%~1=!%~1:* =!"
    :removeAllSpacesFromStart
        if /i "!%~1:~0,1!" equ " " set "%~1=!%~1:~1!"
        if /i "!%~1:~0,1!" equ " " goto removeAllSpacesFromStart
goto :eof

:keepOnlyAllBefore1stSpace
    if /i "!%~2:~%~1,1!" equ " " (
        set "%~2=!%~2:~0,%~1!"
    ) else (
        set /a "nu1_f= !nu1_f! + 1"
    )
goto :eof

:for
    set "nu_f=%~1"
    set "nu1_f=%~2"
    :f_repeatTimes
        if not !nu1_f! lss !nu_f! (
            rem echo(f_repeatTimes !nu_f! !nu1_f! %*
            for %%x in (!nu_f!) do (
                %~3
            )
            set /a "nu_f= !nu_f! + 1"
            goto f_repeatTimes
        )
goto :eof

Answer 13

wmic datafile where name='c:\\windows\\system32\\cmd.exe' get filesize /format:value