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Ready to face interview for PowerShell? Do not worry, we are here to help you with job interview preparation. If you are preparing PowerShell interview and not sure which questions are likely asked in interview, we suggest you to go through Wisdomjobs interview questions and answers page to crack your job interview. PowerShell is task-based command-line shell and scripting language built on the .NET Framework. PowerShell is mainly used for management, administration and automation. It helps to rapidly automate tasks that manage operating systems (Linux, macOS, and Windows) and processes. Strong technical skills are needed as there is huge competition. Below is the list of frequently asked PowerShell interview questions and answers which gets you ready to face the interviews:
PowerShell file contains a series of PowerShell commands with each command appearing on a separate line. To use a text file as a PowerShell script, its filename should have.PS1 extension. To run a script you need
The $input variable enables a function to access data coming from the pipeline
To rename a variable,
Rename-Item- Path Env: MyVariable –NewName MyRenamedVar
To convert the object into HTML
Get-Process l Sort-object – property CPU –descending l convert to – HTML l Out-file “process.html”
This could be a trick question for an average candidate, but normally, good candidates should know that the only thing that makes a function advanced and unlocks the wonderful tooling which comes with it is : [CmdletBinding()].
A great candidate would be pretty enthusiastic about all the powerful tools enabled by advanced functions. Any PowerShell scripter who strives to build professional-grade tools should be thankful for all the work PowerShell is doing for us.
A good candidate would probably use one of 2 ways :
A great candidate would use the much simpler and more robust method : let the .NET Framework do the hard work and just try to cast the input string to the [System.Net.IPAddress] class.
By the way, the candidate should know that what we get from Read-Host is a [string].
Yeah, we start easy, but it is not that intuitive. This requires to know that there is no registry-specific cmdlets, so we have to use the registry provider and Set-ItemProperty.
The registry has been an integral part of Windows for ever, so this is hardly area-specific knowledge. It is very likely that any PowerShell scripter has already performed this task at least once, maybe even on a almost-daily basis.
expand is the argument that should be used with the property name to convert an object property simply into a string.
e.g Get-ADcomputer –filter * | select-Object –expand name
Get-Command -pssnapin <snapin name> –> Lists all commands that got added when the snapin was added to the shell
ConvertTo-CSV is a one step process that only converts data into csv format and let it remain inside the shell Export-CSV is a 2 step process that not only converts data into CSV and also writes the output to a CSV format file.
Again, this is basic stuff. I wouldn’t get caught up in ideology, the good old ping.exeis perfectly valid, as long as the candidate knows the option to specify 5 packets.
If you really want the more PowerShelly Test-Connection, then ask : I just want the command to return $True if the ping is successful and $False if it is not.
Windows PowerShell introduces the concept of a cmdlet which are simple build in commands, written in a .net language like C# or VB.
On the Start menu, click All Programs -> Click Microsoft SharePoint 2010 Products -> Click SharePoint 2010 Management Shell.
Windows PowerShell is a new Windows command-line shell designed especially for system administrators. In the SharePoint administration context, Windows PowerShell is another administration tool that supersedes the existing Stsadm.exe.
Like other languages powershell also supports single/Inline comments line and multi line comments.
Starting with PowerShell V1 there’s only # to make the text after it a comment.
In PowerShell V2 “<# #>” can be used for block comments (multi-line) and more specifically for SYNOPSIS, DESCRIPTION, NOTES, LINK help comments.
Example: Sinlgle/Inline comments
# This is a single or inline comment starts with hash in Powershell
Example: Block comments (multi-line)
<# this is a first line of comment
this is a second line of comment
this is a third line of comment
this is a last line of comment
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