我需要一个批处理脚本,随机选择一个文件夹中的X个文件,并将它们移动到另一个文件夹中。我该如何编写能够实现此功能的Windows批处理脚本?
我假设你的 X 已经事先知道,用变量 $x
表示在以下代码中。
既然你不反对使用 PowerShell 解决方案:
Get-ChildItem SomeFolder | Get-Random -Count $x | Move-Item -Destination SomeOtherFolder
或者更短:
gci somefolder | random -c $x | mi -dest someotherfolder
Get-ChildItem C:\temp\source | Get-Random -Count 100 | Move-Item -Destination C:\temp\output
,但没有任何反应。 - techdaemoncmd /v:on
启用延迟环境变量扩展。还要注意,它将从0到32767中随机选择文件的数量 - 您可能需要修改此部分以适应您的要求!
@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
)
SET SrcMax=25
以复制25个文件。 - RB.@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
@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
需要创建一个批处理文件,从文件夹中选择一个随机文件并复制到另一个文件夹。
$d = gci "C:\Test\A" | resolve-path | get-random -count 1000
按下 Enter 键,然后执行以下代码
Move-Item $d -destination "C:\Test\B"