PowerShell/Docs/list-os-updates.md

## The *list-os-updates.ps1* Script

This PowerShell script lists the latest updates for operating systems.

## Parameters
```powershell
/home/mf/Repos/PowerShell/Scripts/list-os-updates.ps1 [[-RSS_URL] <String>] [[-MaxCount] <Int32>] [<CommonParameters>]

-RSS_URL <String>
    Specifies the URL to the RSS feed
    
    Required?                    false
    Position?                    1
    Default value                https://distrowatch.com/news/dwd.xml
    Accept pipeline input?       false
    Accept wildcard characters?  false

-MaxCount <Int32>
    Specifies the number of news to list
    
    Required?                    false
    Position?                    2
    Default value                30
    Accept pipeline input?       false
    Accept wildcard characters?  false

[<CommonParameters>]
    This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, 
    WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
```

## Example
```powershell
PS> ./list-os-updates

```

## Notes
Author: Markus Fleschutz | License: CC0

## Related Links
https://github.com/fleschutz/PowerShell

## Source Code
```powershell
<#
.SYNOPSIS
	Lists OS updates
.DESCRIPTION
	This PowerShell script lists the latest updates for operating systems.
.PARAMETER RSS_URL
	Specifies the URL to the RSS feed
.PARAMETER MaxCount
	Specifies the number of news to list
.EXAMPLE
	PS> ./list-os-updates
.LINK
	https://github.com/fleschutz/PowerShell
.NOTES
	Author: Markus Fleschutz | License: CC0
#>

param([string]$RSS_URL = "https://distrowatch.com/news/dwd.xml", [int]$MaxCount = 30)

try {
	" "
	"Date  OS Update"
	"----  ---------"
	[xml]$Content = (Invoke-WebRequest -URI $RSS_URL -userAgent "curl" -useBasicParsing).Content


	[int]$Count = 0
	foreach ($item in $Content.rss.channel.item) {
		"$($item.title)"
		$Count++
		if ($Count -eq $MaxCount) { break }
	}
	"      (source: DistroWatch.com)"
	exit 0 # success
} catch {
	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}
```

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