Windows批处理文件脚本从文件夹中选择随机文件并将其移动到另一个文件夹

Question

我需要一个批处理脚本来随机选择文件夹中的X个文件并将它们移动到另一个文件夹。如何编写可以执行此操作的Windows批处理脚本？

Answer 1

（我假设您的 X 事先已知 - 由以下代码中的变量$x表示）。

由于您没有对PowerShell解决方案产生负面影响：

Get-ChildItem SomeFolder | Get-Random -Count $x | Move-Item -Destination SomeOtherFolder

或更短：

gci somefolder | random -c $x | mi -dest someotherfolder

Answer 2

以下批处理代码将执行此操作。请注意，您需要使用以下命令行启动cmd：

cmd /v:on

启用延迟环境变量扩展。另请注意，它将从0到32767选择随机数量的文件 - 您可能需要修改此部分以满足您的要求！

@ECHO OFF
SET SrcCount=0
SET SrcMax=%RANDOM%
FOR %F IN (C:\temp\source\*.*) DO IF !SrcCount! LSS %SrcMax% (
      SET /A SrcCount += 1
      ECHO !SrcCount! COPY %F C:\temp\output
      COPY %F C:\temp\output
      )

Answer 3

这是一个CMD代码，它输出随机文件名（根据您的需要自定义）：

@echo off & setlocal
set "workDir=C:\source\folder"
::Read the %random%, two times is'nt a mistake! Why? Ask Bill.
::In fact at the first time %random% is nearly the same.
@set /a "rdm=%random%"
set /a "rdm=%random%"
::Push to your path.
pushd "%workDir%"
::Count all files in your path. (dir with /b shows only the filenames)
set /a "counter=0"
for /f "delims=" %%i in ('dir /b ^|find "."') do call :sub1
::This function gives a value from 1 to upper bound of files
set /a "rdNum=(%rdm%*%counter%/32767)+1"
::Start a random file
set /a "counter=0"
for /f "delims=" %%i in ('dir /b ^|find "."') do set "fileName=%%i" &call :sub2
::Pop back from your path.
popd "%workDir%"
goto :eof
:: end of main
:: start of sub1
:sub1
::For each found file set counter + 1.
set /a "counter+=1"
goto :eof
:: end of sub1
:: start of sub2
:sub2
::1st: count again,
::2nd: if counted number equals random number then start the file.
set /a "counter+=1"
if %counter%==%rdNum% (
:: OUTPUT ALERT BOX with FILENAME
MSG * "%fileName%"
)
goto :eof
:: end of sub2

Answer 4

@echo off
setlocal EnableDelayedExpansion
cd \particular\folder
set n=0
for %%f in (*.*) do (
   set /A n+=1
   set "file[!n!]=%%f"
)
set /A "rand=(n*%random%)/32768+1"
copy "!file[%rand%]!" \different\folder

来自Need to create a batch file to select one random file from a folder and copy to another folder