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119 lines
3.5 KiB
Markdown
119 lines
3.5 KiB
Markdown
The *watch-news.ps1* Script
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===========================
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This PowerShell script continuously lists the latest headlines by using a RSS (Really Simple Syndication) feed.
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Parameters
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----------
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```powershell
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/home/markus/Repos/PowerShell/scripts/watch-news.ps1 [[-URL] <String>] [[-timeInterval] <Int32>] [<CommonParameters>]
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-URL <String>
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Specifies the URL to the RSS feed (Yahoo World News by default)
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Required? false
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Position? 1
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Default value https://news.yahoo.com/rss/world
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Accept pipeline input? false
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Accept wildcard characters? false
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-timeInterval <Int32>
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Specifies the time interval in seconds between two Web requests (30 seconds by default)
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Required? false
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Position? 2
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Default value 30
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Accept pipeline input? false
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Accept wildcard characters? false
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[<CommonParameters>]
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This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction,
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WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
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```
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Example
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-------
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```powershell
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PS> ./watch-news.ps1
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UTC Yahoo News - Latest News & Headlines - https://www.yahoo.com/news/world
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--- -----------------------------------------------------------------------
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❇️ 14:29 Niger coup: Ecowas deadline sparks anxiety in northern Nigeria
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...
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```
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Notes
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-----
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Author: Markus Fleschutz | License: CC0
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Related Links
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-------------
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https://github.com/fleschutz/PowerShell
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Script Content
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--------------
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```powershell
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<#
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.SYNOPSIS
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Watch the news
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.DESCRIPTION
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This PowerShell script continuously lists the latest headlines by using a RSS (Really Simple Syndication) feed.
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.PARAMETER URL
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Specifies the URL to the RSS feed (Yahoo World News by default)
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.PARAMETER lines
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Specifies the initial number of headlines
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.PARAMETER timeInterval
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Specifies the time interval in seconds between two Web requests (30 seconds by default)
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.EXAMPLE
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PS> ./watch-news.ps1
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UTC Yahoo News - Latest News & Headlines - https://www.yahoo.com/news/world
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--- -----------------------------------------------------------------------
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❇️ 14:29 Niger coup: Ecowas deadline sparks anxiety in northern Nigeria
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...
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.LINK
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https://github.com/fleschutz/PowerShell
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.NOTES
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Author: Markus Fleschutz | License: CC0
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#>
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param([string]$URL = "https://news.yahoo.com/rss/world", [int]$timeInterval = 30) # in seconds
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function PrintLatestHeadlines([xml]$content, [string]$latestTimestamp) {
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$items = $content.rss.channel.item
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[array]::Reverse($items)
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foreach($item in $items) {
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if ($($item.pubDate) -le $latestTimestamp) { continue }
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$title = $item.title
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$time = $item.pubDate.Substring(11, 5)
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& "$PSScriptRoot/write-typewriter.ps1" "❇️ $time $title" 2
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$latestTimestamp = $item.pubDate
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}
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return $latestTimestamp
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}
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try {
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[xml]$content = (Invoke-WebRequest -URI $URL -useBasicParsing).Content
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$title = $content.rss.channel.title
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$link = $content.rss.channel.link
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" "
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" UTC $title - $link"
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" --- -----------------------------------------------------------------------"
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$latestTimestamp = "2000-01-01"
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do {
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$latestTimestamp = PrintLatestHeadlines $content $latestTimestamp
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Start-Sleep -seconds $timeInterval
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[xml]$content = (Invoke-WebRequest -URI $URL -useBasicParsing).Content
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} while ($true)
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exit 0 # success
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} catch {
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"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
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exit 1
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}
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```
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*(generated by convert-ps2md.ps1 using the comment-based help of watch-news.ps1 as of 11/08/2024 12:37:57)*
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