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如果存在C:\directory\goto a else goto b问题windows XP批处理文件

windows-xp batch-file if-statement

Ryan Leach · 技术社区 · 14 年前

无论何时我运行 code

echo off  
echo  
echo (c) Ryan Leach 2010  
echo Stockmaster Backup System for exclusive use of Riverland Paper Supplies  
echo  
echo Please ensure that all computers are out of stock master to the windows xp screen  
echo and that the backup usb with the day of the week labeled on it is inserted  

pause  

IF EXIST D:\RPS_BACKUP\backups_to_zip\ goto zipexist else goto zipexistcontinue  
:zipexist  
IF EXIST d:\RPS_BACKUP\backups_old\ rd /s /q D:\RPS_BACKUP\backups_old  
echo backup did not complete last time, backup will restart from zip-usb phase.  
pause  
call zip  
goto tidyup  
:zipexistcontinue  

IF EXIST D:\RPS_BACKUP\backups_old\ goto oldexists else oldexistscontinue  
:oldexists  
IF EXIST d:\RPS_BACKUP\backup_temp\ rename D:\RPS_BACKUP\backups_temp backups_to_zip  
rd /s /q D:\RPS_BACKUP\backups_old  
echo backup did not complete last time, backup will restart at the zip to usb phase.  
pause  
call zip  
goto tidyup  
:oldexistscontinue  

IF EXIST D:\RPS_BACKUP\backups_temp\ goto tempexists else goto tempexistscontinue  
:tempexists  
IF EXIST D:\RPS_BACKUP\backups_old\ goto backupfailed else goto tempexistscontinue  
:backupfailed  
@rd /s /q D:\RPS_BACKUP\backups_temp  
echo backup did not complete last time, backup will restart from start.  
pause  
:tempexistscontinue  

md D:\RPS_BACKUPS\backups_temp  
xcopy \\user1\c\* D:\RPS_BACKUP\backups_temp\user1\c /h /e /z /f /r /i /s /k  
IF NOT ERRORLEVEL == 1 GOTO ErrorHandler  
xcopy C:\* D:\RPS_BACKUP\backups_temp\user2\c /h /e /f /r /i /s /k  
IF NOT ERRORLEVEL == 1 GOTO ErrorHandler  
xcopy \\user3\c\* D:\RPS_BACKUP\backups_temp\user3\c /h /e /z /f /r /i /s /k  
IF NOT ERRORLEVEL == 1 GOTO ErrorHandler  
call sub  
call zip  
:tidyup  
rename D:\RPS_BACKUP\backups_to_zip backups  
pause  
goto :eof  

:ErrorHandler  
echo xcopyerrorcode is ERRORLEVEL contact ryan  
pause

6 回复 | 直到 8 年前

Joey Gumbo 14 年前

IF EXIST D:\RPS_BACKUP\backups_to_zip\ (goto zipexist) else goto zipexistcontinue

在您的情况下,解析器永远不会看到 else 属于 if 因为 goto echo 而不是 转到 .

另外,使用括号将允许您直接使用语句,而无需跳转(尽管我无法重写您的代码以实际使用结构化编程技术;也许它太早了,或者它本身不适合块结构(因为代码现在是这样)。

Prutswonder 14 年前

else 部分,尝试移除 其他的 并将命令放在新行上。这样地:

IF EXIST D:\RPS_BACKUP\backups_temp\ goto tempexists
goto tempexistscontinue

Gabe Timothy Khouri 14 年前

if /? ):

The ELSE clause must occur on the same line as the command after the IF.  For
example:

    IF EXIST filename. (
        del filename.
    ) ELSE (
        echo filename. missing.
    )

The following would NOT work because the del command needs to be terminated
by a newline:

    IF EXIST filename. del filename. ELSE echo filename. missing

Nor would the following work, since the ELSE command must be on the same line
as the end of the IF command:

    IF EXIST filename. del filename.
    ELSE echo filename. missing

Carl Smotricz 14 年前

如果我的理论是正确的,而你的其他理论却被忽视了,你最好还是这样做

IF NOT EXIST file GOTO label

第二,我隐约记得在测试目录是否存在时出现了某种bug。如果您可以测试该目录中是否存在一个文件,那么您的生活就会更轻松。如果没有可以确定的文件,可以尝试附加设备文件名(这在Win95、IIRC之前都是如此) NUL 你的目录名,例如。

IF NOT EXIST C:\dir\NUL GOTO ...

Ryan Leach 6 年前

@echo off

:START
rmdir temporary
cls
IF EXIST "temporary\." (echo The temporary directory exists) else echo The temporary directory doesn't exist
echo.
dir temporary /A:D
pause

echo.
echo.
echo Note the directory is not found
echo.
echo Press any key to make a temporary directory, cls, and test again
pause

Mkdir temporary
cls
IF EXIST "temporary\." (echo The temporary directory exists) else echo The temporary directory doesn't exist
echo.
dir temporary /A:D
pause
echo.
echo press any key to goto START and remove temporary directory 
pause 

goto START

malenkiy_scot 12 年前

要检查目录,不应使用以下内容:

if exist c:\windows\

要正常工作,请使用:

if exist c:\windows\\.

注意结尾的“.”。