Free PowerShell V1 Book From the Makers of PowerShell Plus

Dr Tobias Weltner has  been involved with Windows scripting for many many years.  He was very active in the VBScript and WMI communities and then an very early adopter of PowerShell.  He is on of the PowerShell MVPs and the inventor of the amazing PowerShell Plus.

Tobias is making waves again by releasing a FREE PowerShell book “Mastering PowerShell”.   This appears to be a very comprehensive book at 567 pages.   Here is the TOC:

Chapters
1. The PowerShell Console
2. Interactive PowerShell
3. Variables
4. Arrays and Hashtables
5. The PowerShell Pipeline
6. Using Objects
7. Conditions
8. Loops
9. Functions
10. Scripts
11. Finding and Avoiding Errors
12. Command Discovery and Scriptblocks
13. Text and Regular Expressions
14. XML
15. The File System
16. The Registry
17. Processes, Services, Event Logs
18. Windows Management Instrumentation
19. User Management
20. Your Own Cmdlets and Extensions

Note that the book is focused on PowerShell V1.

Enjoy!

Technorati Tags: powershell,PowerShell Plus,Mastering PowerShell,Vakul,Vakul Kumar,Vakul Kumar More

OutOfMemoryException in .NET (on 32 bit)

When I got an out of memory exception in my early days of programming, I believed that there is no memory for the program or process to use.

Now, when I started using High end PCs with 4 gigabytes of RAM, I am facing the same problem.
I realize now that memory is not the case but the common language runtime(CLR) throws an OutOfMemoryException error if it cannot allocate physical memory or reserve sufficient virtual memory to fulfill allocation request.

I tried to understand two concepts before further going into the explanation, the operating system manages processes, and the operating system manages files on disk.

Each process can access as much as data storage it wants. It asks the operating system to create for it a certain amount of data storage, and the operating system does so.

I understand that even if we have 512 MB of memory of 8 GB when running a 32 bit operating system no one process is going to get more than 2GB of RAM. 

Eric Lippert has written a blog post on “Out Of Memory” Does Not Refer to Physical Memory. Click  here for the blog post.

Robert L. Bogue has written in more detail in his post , What does an OutOfMemoryException in .NET (on 32 bit) really mean? Click here for the post.

Happy Coding !!

Technorati Tags: OutOfMemoryException,.NET,32 bit,Vakul,Vakul Kumar,Vakul Kumar More