Tuesday, September 17, 2013

More usefull powershell commands

Alternate authentication cmdlet
Sometimes it is pretty useful to be able and use alternate credentials in PowerShell command. This can be done by using Get-Credential cmdlet but a downside is that you can not specify password. Instead what will happen every time this cmdlet is ran it will produce a popup box to enter password.
A nice workaround is to store the credentials in encrypted variable such as $cred = Get-Credential Administrator this will initially pop up with authentication box where password is typed in but afterwards you can use $cred variable in your session without need to type it in again.

Run PowerShell command in background and keep control of your session for other tasks
In the situation where we need to run a cmdlet where output will take a while to be produced we can use -asjob switch. This will give us back our prompt to run additional command while our initial query will run in the background. Some of the related cmdlets with which we can control or view jobs are: Get-Job, Receive-Job, Remove-Job, Resume-Job, Start-Job, Stop-Job, Suspend-Job, Wait-Job

Output text in PowerShell

Input some text into powershell

Convert output of query to HTML
This is specifically usefully if desired output needs to be shared for wide audience. All needs to be done is convert it to HTML using ConvertTo-hmtl and output to file using Out-File to write contents into file on web server and your info is readily available for brain consumption.

Import contents of file into PowerShell for processing
Best example for this would be creating multiple users in AD from predefined csv file. We can use Import-CSV cmdlet to take a contents of csv file and pipe it into another cmdlet such as Import-CSV file.csv | New-ADUser. Please note that header of csv file should contain valid AD properties for user. Whichever properties you have, those properties will be created along with a user.

No comments:

Post a Comment