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using "IF" or "IF [NOT]" to run a command. The variable is the logged on %username%

Posted on 2003-12-03
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Last Modified: 2007-12-19
Hi there all,

I'm in the middle of writing a batch job that'll hopefully run an executable ONLY if the currently logged in user is "Administrator"
I've tried this for starters:
IF [NOT] %username%==administrator GOTO :1
However, this seems to stop the batch process and it will not use the GOTO command. What I get as the output is:
%mycurrentusername%==administrator was unexpected at this time

Essentially, I want to parse the logged on user, and use the value it returns to either run the .exe or not
Any help would be much appreciated.
Thanks,
Mike
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Question by:NYOMSF1
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Accepted Solution

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Dexstar earned 500 total points
ID: 9870552
@NYOMSF1:

> Essentially, I want to parse the logged on user, and use the value it returns
> to either run the .exe or not
> Any help would be much appreciated.

Put this in your batch file:
     @ECHO OFF
     IF %USERNAME% == Administrator GOTO RunIt
     GOTO Exit

     :RunIt
     REM Put command you want to run here
     GOTO Exit

     :Exit
     
Hope That Helps,
Dex*
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Expert Comment

by:dbrunton
ID: 9871685
IF [NOT] "%username%"=="Administrator" GOTO 1

Use the quotation marks around the variables
Don't use the : for the GOTO
Get the Administrator name spelt correctly
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by:Dexstar
ID: 9872180
Actually, you don't need the quotes.  But if you use them on one side, you need them on the other.  For example:
     IF %USERNAME% == Administrator GOTO RunIt

OR
     IF "%USERNAME%" == "Administrator" GOTO RunIt
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Expert Comment

by:_nn_
ID: 9873439
I believe your problem is related to the syntax of the command : the brackets mean "optional", what you wanted was actually something like :

    IF NOT %username%==administrator GOTO :1

Though, I would suggest to use the /I option (ignore case) of the IF command. So something like :

    IF /I "%USERNAME%" NEQ "administrator" GOTO RunIt

should work.
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Expert Comment

by:K_2K
ID: 9880495
Much good info above - please don't accept mine as i think you don't need more than one of the above,

For future reference on all of MS-DOS's help pages:
Items shown in brackets  like [NOT]  are optional - but if used the brackets are not included.  Since the brackets changed the meaning to DOS, ithe next thing on the line was "was unexpected at this time".  

Your original line without the brackets matches the best answer above, except:

I would also aggree that adding quotes is almost always good to prevent problems (like when logging on from a Windows 98 laptop, some variables are not assigned) and i would add them here - but that should not be the cause of your first error above.

My 2¢,
2K
(\o/)
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