需求：编写Windows批处理脚本实现每500个通话录音打包为Zip

I’ve run into this exact FTP transfer issue before—large single zips often fail due to server limits or bandwidth constraints. Here’s a reliable batch script that’ll automatically split your call recordings into manageable 500-file zips, which should resolve the transfer failures your vendor flagged.

The Script #

First, make sure you have 7-Zip installed (it’s free and perfect for batch zipping). You can either add its installation path to your system PATH variable, or replace the zip_exe value below with the full path to 7z.exe (e.g., "C:\Program Files\7-Zip\7z.exe").

@echo off
setlocal enabledelayedexpansion

:: Configure these variables to match your setup
set "source_dir=C:\Path\To\Your\Call\Recordings"
set "zip_exe=7z.exe"
set "files_per_zip=500"
set "zip_prefix=CallRecordings_Batch_"

:: Initialize counters and temp file
set "file_count=0"
set "batch_num=1"
set "temp_list=temp_batch_files.txt"
del /f /q "%temp_list%" 2>nul

echo Starting batch processing...
echo.

:: Loop through all recording files (adjust wildcard to match your file type: *.wav, *.mp3, etc.)
for %%f in ("%source_dir%\*.wav") do (
    :: Add current file to the temporary batch list
    echo "%%~ff">>"%temp_list%"
    set /a file_count+=1

    :: Package the batch when we hit the 500-file limit
    if !file_count! equ %files_per_zip% (
        echo Creating %zip_prefix%!batch_num!.zip...
        "%zip_exe%" a -tzip "%source_dir%\%zip_prefix%!batch_num!.zip" @"%temp_list%" -mx5
        :: Reset for next batch
        set "file_count=0"
        set /a batch_num+=1
        del /f /q "%temp_list%"
    )
)

:: Handle any remaining files that didn't fill a full batch
if !file_count! gtr 0 (
    echo Creating %zip_prefix%!batch_num!.zip with remaining !file_count! files...
    "%zip_exe%" a -tzip "%source_dir%\%zip_prefix%!batch_num!.zip" @"%temp_list%" -mx5
    del /f /q "%temp_list%"
)

echo.
echo Batch processing complete! Created !batch_num! zip files.
pause
endlocal

Key Adjustments & Details #

• File Type: Change *.wav in the for loop to match your recording file extension (e.g., *.mp3, *.flac).
• Compression: The -mx5 flag uses moderate compression—swap it for -mx0 (no compression, fastest) or -mx9 (max compression, slowest) based on your priorities.
• Zip Location: Zips are saved in the same folder as recordings. To use a separate folder, modify the zip path (e.g., "C:\Path\To\Zips\%zip_prefix%!batch_num!.zip").
• FTP Integration: Update your existing FTP script to loop through all %zip_prefix%*.zip files instead of a single zip—this will send every batch automatically.

Important Notes #

1. Test First: Run the script on a copy of your recordings first to avoid accidental data loss.
2. 7-Zip Path: If you don’t add 7-Zip to your system PATH, use the full path to 7z.exe in the zip_exe variable.
3. Delayed Expansion: The enabledelayedexpansion flag is critical—it lets the script update and read counters correctly during the loop.

内容的提问来源于stack exchange，提问作者Greg