Skip to main content

PowerShell: Alternative to VBScript and DOS Scripts

Most developers I know still use VBScript and DOS to compose reusable and one-time scripts. I was one of these people until I discovered PowerShell. It's a bit tricky to pick up but far more powerful than the legacy alternatives.

My favorite feature is the "-whatIf" flag found on most (if not all) operations. One can set this flag to understand exactly what would happen if you were to execute the command as it is written. It's almost like having a unit test harness for scripting operations. No more accidental hard drive formatting.

So, for your next scripting task, check out PowerShell instead of writing some hard-to-maintain/author legacy script.

Comments

Popular posts from this blog

Shrinking WSS (Sharepoint) SQL Server Log Files

Yesterday, while migrating a source repository from StarTeam to TFS, I received the following error:
"TF30042: The database is full. Contact your Team Foundation Server administrator."Excuse you? Sure enough, my 100+ GB drive was full on the server. But I'd only migrated around 1000 items. Surely SQL wasn't consuming 100MB per file.

Turns out (yes, there was a lot of crud on the drive but...) the majority of the space, almost 40GB was being consumed by the Windows Sharepoint Services WSS Content data and log SQL Server files. Huh? I still need to investigate and understand why this portal, which is 100% unused, grew so large. Regardless, here's what I did to resolve:

Since this is not yet a production database, I flipped the SQL recovery option from Full to Simple for WSS Content and several other databases. Detail here and here.
Executed the maintenance plan for all the databases to get backups and clear out some of these files. That didn't help much. The Auto_…

TFS Error | The type initializer for 'Microsoft.TeamFoundation.Build.Server.BuildInformationNodeBinder' threw an exception.

Posting this one for the search engines. If you ever receive the exception "The type initializer for 'Microsoft.TeamFoundation.Build.Server.BuildInformationNodeBinder' threw an exception.", more than likely, your drive space is at 0 on your TFS application tier box.

I encountered this at a client recently. The root cause was that IIS logs had filled up the OS drive (C:\). I switched IIS logging to the applications drive (D:\) which cleaned up the OS drive and resolved the issue.

Detailed message:


TF53010: The following error has occurred in a Team Foundation component or extension:


Date (UTC): 6/7/2011 4:18:53 PM

Machine: TFSATBOX

Application Domain: /LM/W3SVC/8080/ROOT/tfs-1-129519118182628600

Assembly: Microsoft.TeamFoundation.Framework.Server, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a; v2.0.50727

Service Host: 7ecfbd77-b386-4d75-b038-b05474782696 (DefaultCollection)

Process Details:

Process Name: w3wp

Process Id: 3676

Thread Id: 5752

Ac…

Verified by Visa: Everything We Tell Folks to Avoid

Phishing is defined by F-Secure as: "Fraudulent e-mail or website claiming to be legitimate seeking indentifiable information. Phishing is an attempt to steal your personal data."When I recently attempted an online purchase from WalMart using my VISA card, being a security wanta-be, I immediately thought phishing when redirected to verifiedbyvisa.com and saw this dialog:

Seriously, these folks have to be kidding. You're asking for my personal data during a transaction and claim that's its a service "...at no additional cost." Wow! Thanks...but absolutely not, you jokers. As a malicious thief, I can go a long way with this data.

This is exactly the type of experience which aids malfeasance and the folks trying to steal personal data / identities. How long have we been working to educate folks to avoid providing this type of data under these type of circumstances? Years. And we're just now starting to turn the corner.

VISA, get rid of this! When folks submi…