WinDbg shortcuts: !envvar

CARE: Crash Analysis Report Environment

DATA (Dump Analysis + Trace Analysis) Facebook group
Please join the community of memory (dump) and trace analysis engineers. This group promotes scientific methods and memory dump-based worldview.

Twitter @ DumpAnalysis
You can now follow portal and blog news at DumpAnalysis on Twitter

LinkedIn Group Dr. Watson Enthusiasts
All about Dr. Watson errors and more. Get news, excerpts and progress reports about the forthcoming book The Science of Dr. Watson: An Illustrated History of Debugging (ISBN 978-1906717070)

2010 (0x7DA) - The Year of Dump Analysis
2011 (0x7DB) - 2020 (0x7E4) The Debugging Decade

More than a year ago I wrote a post about checking computer name in various memory dump types:

Where did the crash dump come from?

Today I found yet another shortcut for process memory dumps using WinDbg command !envvar:

0:003> !envvar COMPUTERNAME
        COMPUTERNAME = MYHOMEPC

Of course, we can use it for any other variable. It also works for complete memory dumps but we need to set the appropriate process context first:

3: kd> !envvar PATH
        PATH = C:\WINDOWS\system32;C:\WINDOWS;[...]

- Dmitry Vostokov @ DumpAnalysis.org -

           

Announcements

Coming Soon:

Debugging Notebook: Essential Concepts, WinDbg Commands and Tools

Crash Dump Analysis for System Administrators and Support Engineers

New Magazines:

Debugged! MZ/PE: MagaZine for/from Practicing Engineers


New Books:

Memory Dump Analysis Anthology, Volume 3

First Fault Software Problem Solving: A Guide for Engineers, Managers and Users

x64 Windows Debugging: Practical Foundations

Also available:

Windows Debugging: Practical Foundations

DLL List Landscape: The Art from Computer Memory Space

Dumps, Bugs and Debugging Forensics: The Adventures of Dr. Debugalov

WinDbg: A Reference Poster and Learning Cards

Memory Dump Analysis Anthology, Volume 2

Memory Dump Analysis Anthology, Volume 1

New Children's Book:

Baby Turing

One Response to “WinDbg shortcuts: !envvar”

  1. Taehwa Says:

    It’s very cool command to see hostname.

    I usually use blow command. ^^

    lkd> dt srv!SrvComputerName
    “CSS-TALEE”
    +0×000 Length : 0×12
    +0×002 MaximumLength : 0×22
    +0×004 Buffer : 0xe1d37af8 “CSS-TALEE”

Leave a Reply