我正在使用计划任务运行批处理文件以导出备份。在导出命令中,使用“FILE = filename”。我给了它一个名字,但我怎么能让它编号,所以它不会覆盖? (例如file1,file2,file3)。
由于
答案 0 :(得分:1)
如果您在同一目录中:
@echo off
setlocal enableDelayedExpansion
set "file_name_pattern=file"
for %%a in (file*) do (
set "file_name=%%~na"
)
set "last_file_number=!file_name:%file_name_pattern%=!"
echo last file number : !last_file_number!
set /a next_file_number=last_file_number
set next_file=!file_name_pattern!%next_file_number%
echo next file : %next_file%
endlocal
FOR /L
@echo off
setlocal enableDelayedExpansion
set "file_name_pattern=file"
set init=1
for /l %%n in (1;1;10000) do (
echo %%n
if not exist "!file_name_pattern!%%n" (
set last_file_number=%%n
goto :break_for
rem
)
)
:break_for
echo last file number : !last_file_number!
set /a next_file_number=last_file_number+1
set next_file=!file_name_pattern!%next_file_number%
echo next file : %next_file%
endlocal