Automatic Variables In Powershell

Constantine Kokkinos has a list of automatic variables in Powershell:

Been a few days of learning since I last wrote one of these, but I have come back to the automatic variables page on the PowerShell documentation enough times that I think I should just blog the important parts for myself.

  • $?TRUE/FALSE if the last thing you did succeeded.

  • $_ – Something everyone uses in posh, current pipeline object.

  • $Args – all the undeclared params passed to a function, try to avoid.

  • $Error – the array of error objects that represent a stack of the most recent errors. use $Errors0 to get the most recent error.

Read on for more variables.

Related Posts

Testing Backups With dbatools

Constantine Kokkinos shows off a dbatools cmdlet to test the last full backup: This: Defines a list of two servers (PowerShell lists are as easy as “”,””) Pipes them to the Test-DbaLastBackup command. Which then: Gathers information about the last full backups for all of your databases on that instance. Restores the backups to the Destination with […]

Read More

Log Shipping With dbatools

Sander Stad shows off a few log shipping functions he created for dbatools: The entire log shipping functionality is now separated between 5 functions. Four of them are used internally and are not visible as a public function because you can easily break stuff if it’s not being used correctly. The main function, Invoke-DbaLogShipping, is […]

Read More

Categories

October 2016
MTWTFSS
« Sep Nov »
 12
3456789
10111213141516
17181920212223
24252627282930
31