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if-statementbatch-filewindows-xp

IF EXIST C:\directory\ goto a else goto b problems windows XP batch files


whenever i run the code below it occurs to me I have made a mistake using the if exist lines, as no matter whether the directory exists or not, it acts as if the line was never there... either that or its not reading the else line.


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  

Solution

  • Use parentheses to group the individual branches:

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

    In your case the parser won't ever see the else belonging to the if because goto will happily accept everything up to the end of the command. You can see a similar issue when using echo instead of goto.

    Also using parentheses will allow you to use the statements directly without having to jump around (although I wasn't able to rewrite your code to actually use structured programming techniques; maybe it's too early or it doesn't lend itself well to block structures as the code is right now).