Parsing file using FOR command not working correctly

From: Dave Pink (tron9901_at_msn.com)
Date: 07/12/04 

Date: 12 Jul 2004 09:08:01 -0700

I'm using PsLogList from www.sysinternals.com to dump the contents of
an Event Log. The output is saved to the file hotfix.txt.

Contents of hotfix.txt:

[3166] NtServicePack
   Type: INFORMATION
   Computer: PRDW2K-WEB109
   Time: 6/27/2004 2:02:37 AM ID: 4377
Windows 2000 Hotfix KB837001 was installed.

Using the FOR command, I'm trying to extract just the Event Log
number; in this case it's 3166. I can't get it to work right.

Here's my batch file:

FOR /F "tokens=1 delims=[]" %%a in (hotfix.txt) DO SET Number=%%a
@ECHO %Number%

Here's the output of my batch file:

C:\>FOR /F "tokens=1 delims=[]" %%a in (hotfix.txt) DO SET Number=%%a

C:\>set Number=3166

C:\>set Number= Type: INFORMATION

C:\>set Number= Computer: PRDW2K-WEB109

C:\>set Number= Time: 6/27/2004 2:02:37 AM ID: 4377

C:\>set Number=Windows 2000 Hotfix KB837001 was installed.

Windows 2000 Hotfix KB837001 was installed.

How can I set the variable "Number" equal to "3166"? Any help would be
appreciated. Thanks.

Dave

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