[文本处理] [已解决]自动下载symantec最新病毒库的批处理求优化

lijinan

在论坛的帮助下,写了个批处理,自动下载symantec最新病毒库的;感觉还可以优化,请大侠支招.
第一版:

@echo off
color
cd /d "%~dp0"
echo job start at	%date:~0,10% %time:~0,8%>>log.txt
if exist md5-hash.txt del /f /a /q md5-hash.txt
aria2c -c -s10 -x10 -j1 -V --check-certificate=false --file-allocation=none https://www.symantec.com/avcenter/download/md5-hash.txt
for /f "tokens=2 delims= " %%a in ('findstr "20.*-v5i64.exe" "md5-hash.txt"') do set filename1=%%a
for /f "tokens=2 delims=/" %%a in ('findstr "20.*-SONAR_IU_SEP.exe" "md5-hash.txt"') do set filename2=%%a
for /f "tokens=2 delims=/" %%a in ('findstr "20.*-IPS_IU_SEP.exe" "md5-hash.txt"') do set filename3=%%a
if exist %filename1% rename %filename1% %filename1%.bak
if exist %filename2% rename %filename2% %filename2%.bak
if exist %filename3% rename %filename3% %filename3%.bak
if exist *.exe del /f /a /q *.exe
if exist FileChk.txt del /f /a /q FileChk.txt
if exist %filename1%.bak rename %filename1%.bak %filename1%
if exist %filename2%.bak rename %filename2%.bak %filename2%
if exist %filename3%.bak rename %filename3%.bak %filename3%
if not exist %filename1% aria2c -c -s10 -x10 -j1 -V --check-certificate=false --file-allocation=none http://definitions.symantec.com/defs/%filename1%
if not exist %filename2% aria2c -c -s10 -x10 -j1 -V --check-certificate=false --file-allocation=none http://definitions.symantec.com/defs/sonar/%filename2%
if not exist %filename3% aria2c -c -s10 -x10 -j1 -V --check-certificate=false --file-allocation=none http://definitions.symantec.com/defs/ips/%filename3%
fsum -md5 -sha1 *.exe md5-hash.txt>FileChk.txt
echo job end at	%date:~0,10% %time:~0,8%>>log.txt
goto end
:: 结束程序
:end
echo.
echo 任意键退出!
pause >nul 2>nul
goto :Eof
复制代码

第二版:

@echo off
color
cd /d "%~dp0"
echo job start at	%date:~0,10% %time:~0,8%>>log.txt
if exist md5-hash.txt del /f /a /q md5-hash.txt
:redownload
aria2c -c -s10 -x10 -j1 -V --check-certificate=false --file-allocation=none https://www.symantec.com/avcenter/download/md5-hash.txt >nul 2>nul
if not exist md5-hash.txt goto redownload
:: Create Filename
for /f "tokens=2 delims= " %%a in ('findstr "2.......-...-v5i64.exe" "md5-hash.txt"') do set filename1=%%a
for /f "tokens=2 delims=/" %%a in ('findstr "2.......-...-SONAR_IU_SEP.exe" "md5-hash.txt"') do set filename2=%%a
for /f "tokens=2 delims=/" %%a in ('findstr "2.......-...-IPS_IU_SEP.exe" "md5-hash.txt"') do set filename3=%%a
if exist dl.txt del /f /a /q dl.txt
echo http://definitions.symantec.com/defs/%filename1%>dl.txt
echo http://definitions.symantec.com/defs/sonar/%filename2%>>dl.txt
echo http://definitions.symantec.com/defs/ips/%filename3%>>dl.txt
if exist %filename1% rename %filename1% %filename1%.bak
if exist %filename2% rename %filename2% %filename2%.bak
if exist %filename3% rename %filename3% %filename3%.bak
if exist *.exe del /f /a /q *.exe
if exist %filename1%.bak rename %filename1%.bak %filename1%
if exist %filename2%.bak rename %filename2%.bak %filename2%
if exist %filename3%.bak rename %filename3%.bak %filename3%
:: Create FileChk.txt
if exist FileChk.txt del /f /a /q FileChk.txt
for /f "tokens=1-2 delims= " %%a in ('findstr "2.......-...-v5i64.exe" "md5-hash.txt"') do set chk1=%%a *%%b
for /f "tokens=1-3 delims=/ " %%a in ('findstr "2.......-...-SONAR_IU_SEP.exe" "md5-hash.txt"') do set chk2=%%a *%%c
for /f "tokens=1-3 delims=/ " %%a in ('findstr "2.......-...-IPS_IU_SEP.exe" "md5-hash.txt"') do set chk3=%%a *%%c
echo %chk1%>FileChk.txt
echo %chk2%>>FileChk.txt
echo %chk3%>>FileChk.txt
fsum -c FileChk.txt >nul 2>nul
if %errorlevel% EQU 0 goto end
:filedownload
if exist *.exe del /f /a /q *.exe
if exist *.aria2 del /f /a /q *.aria2
aria2c -c -s10 -x10 -j1 -V --check-certificate=false --file-allocation=none -idl.txt >nul 2>nul
fsum -c FileChk.txt >nul 2>nul
if %errorlevel% EQU 0 goto end
if not %errorlevel% EQU 0 goto filedownload
goto end
:: 结束程序
:end
fsum -md5 -sha1 *.exe md5-hash.txt dl.txt>>FileChk.txt
echo job end at	%date:~0,10% %time:~0,8%>>log.txt
echo.
echo 任意键退出!
pause >nul 2>nul
goto :Eof
复制代码

lijinan

回复 3# 依山居


    有时候下载会出错或者停止,校验后继续下载,可保证下载的东西是OK的。

依山居

直接覆盖写文件不就好了嘛，不用写这么多判断文件存不存在。

aa77dd@163.com

没感觉还能有什么优化, 用形如 for %%a in (1 2 3) do... 来整合简短一下是可以的

原始的也就二三十行, 简短也没多大意义,  最重要的是能正常运行就好了