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  • How to append to a log file in powershell?

    - by Mark Allison
    Hi there, I am doing some parallel SQL Server 2005 database restores in powershell. The way I have done it is to use cmd.exe and start so that powershell doesn't wait for it to complete. What I need to do is to pipe the output into a log file with append. If I use Add-Content, then powershell waits, which is not what I want. My code snippet is foreach ($line in $database_list) { <snip> # Create logins sqlcmd.exe -S $instance -E -d master -i $loginsFile -o $logFile # Read commands from a temp file and execute them in parallel with sqlcmd.exe cmd.exe /c start "Restoring $database" /D"$pwd" sqlcmd.exe -S $instance -E -d master -i $tempSQLFile -t 0 -o $logFile [void]$logFiles.Add($logFile) } The problem is that sqlcmd.exe -o overwrites. I've tried doing this to append: cmd.exe /c start "Restoring $database" /D"$pwd" sqlcmd.exe -S $instance -E -d master -i $tempSQLFile -t 0 >> $logFile But it doesn't work because the output stays in the SQLCMD window and doesn't go to the file. Any suggestions? Thanks, Mark.

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  • Execute process conditionally in Windows PowerShell (e.g. the && and || operators in Bash)

    - by Dustin
    I'm wondering if anybody knows of a way to conditionally execute a program depending on the exit success/failure of the previous program. Is there any way for me to execute a program2 immediately after program1 if program1 exits successfully without testing the LASTEXITCODE variable? I tried the -band and -and operators to no avail, though I had a feeling they wouldn't work anyway, and the best substitute is a combination of a semicolon and an if statement. I mean, when it comes to building a package somewhat automatically from source on Linux, the && operator can't be beaten: # Configure a package, compile it and install it ./configure && make && sudo make install PowerShell would require me to do the following, assuming I could actually use the same build system in PowerShell: # Configure a package, compile it and install it .\configure ; if ($LASTEXITCODE -eq 0) { make ; if ($LASTEXITCODE -eq 0) { sudo make install } } Sure, I could use multiple lines, save it in a file and execute the script, but the idea is for it to be concise (save keystrokes). Perhaps it's just a difference between PowerShell and Bash (and even the built-in Windows command prompt which supports the && operator) I'll need to adjust to, but if there's a cleaner way to do it, I'd love to know.

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  • How to set ExecutionPolicy: access to registry key denied

    - by jrara
    I'm running Windows Server 2008 as admin and I tried to set ExecutionPolicy as Remotesigned for PowerShell v2 like this: Set-ExecutionPolicy RemoteSigned But I got this error: Set-ExecutionPolicy : Access to the registry key 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PowerShell\1\ShellIds\Microsoft .PowerShell' is denied. At line:1 char:20 + Set-ExecutionPolicy <<<< RemoteSigned + CategoryInfo : NotSpecified: (:) [Set-ExecutionPolicy], UnauthorizedAccessException + FullyQualifiedErrorId : System.UnauthorizedAccessException,Microsoft.PowerShell.Commands.SetExecutionPolicyComma nd How to fix this?

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  • Importing PSTs with PowerShell in Exchange 2010 SP1

    Unless you use Red Gate's PST Importer, the import and export of PST files with Exchange 2010 is a complex and error-prone business. Microsoft have acknowledged this in the release of Exchange 2010 SP1, since they have now re-engineered the way that PSTs are handled to try and ease the pain of importing and exporting them, but it is still a matter of using Powershell with cmdlets, rather than a GUI. Jaap Wesselius takes a look at the new process.

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  • Creating a two-way Forest trust with Powershell

    - by Michel Klomp
    Here is a small Powershell script for creating a two-way forest trust. $localforest = [System.DirectoryServices.ActiveDirectory.Forest]::getCurrentForest() $strRemoteForest = ‘domain.local’ $strRemoteUser = ‘administrator’ $strRemotePassword = ‘P@ssw0rd’ $remoteContext = New-Object System.DirectoryServices.ActiveDirectory.DirectoryContext(‘Forest’, $strRemoteForest,$strRemoteUser,$strRemotePassword) $remoteForest = [System.DirectoryServices.ActiveDirectory.Forest]::getForest($remoteContext) $localForest.CreateTrustRelationship($remoteForest,’Bidirectional’)

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  • How to Create a PowerShell Profile

    - by Taylor Gibb
    PowerShell is a great way to automate almost anything in Windows. However, its not just a scripting language. If you find yourself using it as a command line shell it may be useful to store your functions and customizations in a profile that gets loaded every time you load the Console. Read on to find out how. 6 Ways Windows 8 Is More Secure Than Windows 7 HTG Explains: Why It’s Good That Your Computer’s RAM Is Full 10 Awesome Improvements For Desktop Users in Windows 8

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  • PowerShell – Show a Notification Balloon

    - by BuckWoody
    In my presentations for PowerShell I sometimes want to start a process (like a backup) that will take some time. I normally pop up a notification “balloon” at the start, and then do the bulk of the work, and then pop up a balloon at the end to let me know it’s done. You can actually try out this little sample (on a test system, of course) without any other code to see what it does. Then just put the other PowerShell commands in the #Do Some Work part. Oh – throw an icon (.ico file) in a c:\temp directory or point that somewhere else. (No, this probably isn’t original. Can’t remember where I saw the original code, but I’ve modified it a bit anyway, so if you’re the original author and this looks slightly familiar, post a comment.) [void] [System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") $objBalloon = New-Object System.Windows.Forms.NotifyIcon $objBalloon.Icon = "C:\temp\Folder.ico" # You can use the value Info, Warning, Error $objBalloon.BalloonTipIcon = "Info" # Put what you want to say here for the Start of the process $objBalloon.BalloonTipTitle = "Begin Title" $objBalloon.BalloonTipText = "Begin Message" $objBalloon.Visible = $True $objBalloon.ShowBalloonTip(10000) # Do some work # Put what you want to say here for the completion of the process $objBalloon.BalloonTipTitle = "End Title" $objBalloon.BalloonTipText = "End Message" $objBalloon.Visible = $True $objBalloon.ShowBalloonTip(10000) Script Disclaimer, for people who need to be told this sort of thing: Never trust any script, including those that you find here, until you understand exactly what it does and how it will act on your systems. Always check the script on a test system or Virtual Machine, not a production system. Yes, there are always multiple ways to do things, and this script may not work in every situation, for everything. It’s just a script, people. All scripts on this site are performed by a professional stunt driver on a closed course. Your mileage may vary. Void where prohibited. Offer good for a limited time only. Keep out of reach of small children. Do not operate heavy machinery while using this script. If you experience blurry vision, indigestion or diarrhea during the operation of this script, see a physician immediately. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • Exceptional PowerShell DBA Pt 3 - Collation and Fragmentation

    In this final look into his everyday essentials, Laerte Junior provides some useful scripts for the DBA that use an alternative way of error-logging. He shows how to use a PowerShell script to check and, if necessary, to defragment your indexes, write data to a SQL Server table, and change the collation for a table. Being an exceptional DBA just got a little easier.

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  • Stupid Geek Tricks: Extract Links Off Any Webpage Using PowerShell

    - by Taylor Gibb
    PowerShell 3 has a lot of new features, including some powerful new web-related features. They dramatically simplify automating the web, and today we are going to show you how you can extract every single link off a webpage, and optionally download the resource if you so wish. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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  • 5 Cmdlets to Get You Started with PowerShell

    - by Taylor Gibb
    PowerShell is quickly becoming the preferred scripting language and CLI of Power Users as well as IT Pros. It’s well worth learning a few commands to get you started, so we’ve got 5 useful cmdlets for you to learn today. HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

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  • How to Run PowerShell 2 and 3 Concurrently in Windows 8

    - by Taylor Gibb
    Windows 8 comes with a shiny new version of PowerShell, version 3. But while playing around with it, I have noticed a lot of scripts that I had written for version 2 are now throwing errors, so here’s how to get version 2 back while not losing version 3. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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  • Fun with SQL Server Profiler trace files and PowerShell

    Running Profiler traces against multiple servers becomes a painful process when it’s time to collate and filter all that data. It would be time-consuming, frustrating and messy if Laerte hadn’t written this handy PowerShell script (complete with examples) to help you out. Free trial of SQL Backup™“SQL Backup was able to cut down my backup time significantly AND achieved a 90% compression at the same time!” Joe Cheng. Download a free trial now.

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  • Practical PowerShell for SQL Server Developers and DBAs – Part 1

    There is a lot of confusion amongst DBAs about using PowerShell due to existence the deprecated SQLPS mini-shell of SSMS and the newer SQLPS module. In a two-part article and wallchart, Michael Sorens explains how to install it, what it is, and some of the excellent things it has to offer. Compress live data by 73% Red Gate's SQL Storage Compress reduces the size of live SQL Server databases, saving you disk space and storage costs. Learn more.

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  • Using a PowerShell Script to delete old files for SQL Server

    Many clients are using custom stored procedures or third party tools to backup databases in production environments instead of using database maintenance plans. One of the things that you need to do is to maintain the number of backup files that exist on disk, so you don't run out of disk space. There are several techniques for deleting old files, but in this tip I show how this can be done using PowerShell.

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  • Perform Routine Server Checks Using PowerShell

    Database administrators tend to perform a lot of routine checks, referred to as sanity checks, on a daily, weekly, and monthly basis. Rob Gravelle shows you how to write some PowerShell scripts to automate a couple of fairly common sanity checks. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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  • Practical PowerShell for SQL Server Developers and DBAs – Part 2

    Having shown just how useful PowerShell can be for DBAs in executing queries, Michael Sorens now takes us through navigating SQL Server space and finding meta-information - valuable information for anyone looking to be more productive in SQL Server. What can SQL Monitor 3.2 monitor?Whatever you think is most important. Use custom metrics to monitor and alert on data that's most important for your environment. Find out more.

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  • Runnin Framework 4.0 with Powershell

    - by Mike Koerner
    I had problems running scripts with Framework 4.0 assemblies I created.  The error I was getting was  Add-Type : Could not load file or assembly 'file:///C:\myDLL.dll' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. I had to add the supported framework to the powershell.exe.config file.<supportedRuntime version="v4.0.30319"/>I still had a problem running the assembly so I had to recompile and set "Generate serialization Assembly" to off.

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  • Managing Printers with Group Policy, PowerShell, and Print Management

    Just because it is possible to do many configuration jobs 'click by bleeding click', doesn't mean that it is a good idea. It is better to step back, plan, and use the advanced resources provided for managing large network. Printer configuration is the perfect illustration of this, and Joseph demonstrates how the use of Group Policy, PowerShell, and Print Management can turn a time-consuming chore into a pleasure.

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  • Does Powershell have an "eval" equivalent? Is there a better way to see a list of properties and val

    - by glenatron
    I'm doing a bit of Powershell scripting ( for the first time ) to look at some stuff in a Sharepoint site and what I would like to be able to do is to go through a list of properties of an object and just output their values in a "property-name = value" kind of format. Now I can find the list of elements using this: $myObject | get-member -membertype property Which will return a list of all the properties in a very clear and readable fashion. But what I need is to find a value for those properties. In some scripting languages I could have a kind of eval( "$myObject.$propertyName" ) call - where I have extracted $propertyName from the get-member output - and have it evaluate the string as code, which for the kind of quick-and-dirty solution I need would be fine. Does this exist in Powershell or is there a more convenient way to do it? Should I be using reflection instead?

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  • Which are the non-x text editors in Powershell?

    - by Andrei T. Ursan
    Are there some editors like emacs, vi/vim, specifically for power shell, if so which are the best? I will have to do some work on windows and I need some unix productivity - which means for me shell + text editor with syntax highlighting (for python, java, c, c++), so which are my options? Edit: I'm looking for an alternative at vim or other unix editors, and cygwin is not an option. I just want from the command line to say texteditor_name file1, modify it, save it etc, and all of these to happen inside the terminal, not in another interface etc.

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