我在文件夹中有大约20 000个文件,我想压缩并删除超过7天的文件。我尝试过这个脚本,但效果很慢:
Set TDate=%date:~6,4%%date:~3,2%%date:~0,2%
for /f "delims=" %%i in ('
forfiles /p C:\ARCHIVE /s /m *.txt /d -7 /c "cmd /c echo @path"
') do (
"%ProgramFiles%\7-Zip\7z.exe" a "C:\ARCHIVE_%TDate%.zip" %%i
del /a /f %%i
)
请告知如何让它更快地运作。
答案 0 :(得分:5)
除了使用非常慢的forfiles
(我认为这个脚本是不可避免的)之外,脚本的主要减速部分是在每个循环迭代中修改归档。相反,您应该只进行一次归档,可能使用列表文件,然后让归档工具删除它自己成功压缩的文件:
@echo off
setlocal EnableExtensions DisableDelayedExpansion
rem // Define constants here:
set "_ROOT=C:\ARCHIVE"
set "_PATTERN=*.txt"
set "_LIST=%TEMP%\%~n0.tmp"
set "_ARCHIVER=%ProgramFiles%\7-Zip\7z.exe"
rem // Get current date in locale-independent format:
for /F "tokens=2 delims==" %%D in ('wmic OS get LocalDateTime /VALUE') do set "TDATE=%%D"
set "TDATE=%TDATE:~,8%"
rem // Create a list file containing all files to move to the archive:
> "%_LIST%" (
for /F "delims=" %%F in ('
forfiles /S /P "%_ROOT%" /M "%_PATTERN%" /D -7 /C "cmd /C echo @path"
') do echo(%%~F
) && (
rem // Archive all listed files at once and delete the processed files finally:
"%_ARCHIVER%" a -sdel "%_ROOT%_%TDATE%.zip" @"%_LIST%"
rem // Delete the list file:
del "%_LIST%"
)
endlocal
exit /B