Help me to better understand powershell code/snippet.

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hello,

could me better understand following highlighted in provided code snippet,

1) code there variable '  $htmlheader = @" '  what means ?

2) variable '  $servicesreport = @()  ' means ?

3)and below statement ?

$row = new-object -type psobject -property @{  ....  }

appreciate if suggest books advanced powershell programming.

code:

$htmlheader = @" <!doctype html public "-//w3c//dtd html 4.01 frameset//en" "http://www.w3.org/tr/html4/frameset.dtd"> <html><head><title>my systems report</title> <style type="text/css"> <!-- body { font-family: verdana, geneva, arial, helvetica, sans-serif; }      #report { width: 835px; }      table{ 	border-collapse: collapse; 	border: none; 	font: 10pt verdana, geneva, arial, helvetica, sans-serif; 	color: black; 	margin-bottom: 10px; } </style> </head> <body>  "@  $servicesreport = @() 	$services = get-wmiobject -class win32_service -computername $computer | {($_.startmode -eq "auto") -and ($_.state -eq "stopped")}  	foreach ($service in $services) { 		$row = new-object -type psobject -property @{ 	   		name = $service.name 			status = $service.state 			startmode = $service.startmode 		} 		 	$servicesreport += $row 	 	}

thanks


1) code there variable '  $htmlheader = @" '  what means ?

the @"  "@ convenient way of defining long string constant on many lines.

2) variable '  $servicesreport = @()  ' means ?

@() defining new empty array.

the += operator in " $servicereport += $row  " adding new element array.

3)and below statement ?

$row = new-object -type psobject -property @{  ....  }

creating powershell object, properties , values defined in hashtable  

@{} defines hashtable,

powershell objects different traditional objects in properties of object defined / constructed @ run-time vs other objects / classes defined @ compile time.

to learn powershell check out courses @ microsoft virtual academy.

getting started powershell 3.0 jump start
http://www.microsoftvirtualacademy.com/training-courses/getting-started-with-powershell-3-0-jump-start

advanced tools & scripting powershell 3.0 jump start
http://www.microsoftvirtualacademy.com/training-courses/advanced-tools-scripting-with-powershell-3-0-jump-start





Windows Server  >  Windows PowerShell



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