batch regex the output of reg query command to a variable

regex windows batch-file registry dword
toosweetnitemare picture toosweetnitemare · Jul 1, 2013 · Viewed 18.1k times · Source

summary

I need to be able to find the DWORD value of a registry key and set a variable to it to run an if statement against it.

how can i grab just the dword of a reg query so that i can work with it in the rest of my script?

reg query

reg query HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v EnableFirewall

req query output

EnableFirewall    REG_DWORD    0x1

what i need to grab

0x1

pseudo code

query firewall reg value
regex out DWORD value and set to variable var1
if var1 == 0x1 then do blah
else do other blah

Answer

captcha picture captcha · Jul 1, 2013

try this: 

@echo off &setlocal
for /f "tokens=2*" %%a in ('reg query HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v EnableFirewall') do set "var=%%b"
if "%var%"=="0x1" (do this) else do that

Related questions

Why does findstr not handle case properly (in some circumstances)?

While writing some recent scripts in cmd.exe, I had a need to use findstr with regular expressions - customer required standard cmd.exe commands (no GnuWin32 nor Cygwin nor VBS nor Powershell). I just wanted to know if a …

Read More
Regular expressions in findstr

I'm doing a little string validation with findstr and its /r flag to allow for regular expressions. In particular I'd like to validate integers. The regex ^[0-9][0-9]*$ worked fine for non-negative numbers but since I now support negative numbers …

Read More
Free alternative(s) to PowerGREP

First of all, great praise goes out to PowerGREP it's a great program. But it's not free. Some of it's options I'm looking for: Being able to use .NET regexp's (or similar) to find things in a filtered list of …

Read More