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39 lines
1.1 KiB
PowerShell
Executable File
39 lines
1.1 KiB
PowerShell
Executable File
#!/bin/powershell
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<#
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.SYNTAX ./weather-alert.ps1
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.DESCRIPTION checks the current weather for critical values
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.LINK https://github.com/fleschutz/PowerShell
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.NOTES Author: Markus Fleschutz / License: CC0
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#>
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$GeoLocation="" # empty means determine automatically
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function Check { param([int]$Value, [int]$NormalMin, [int]$NormalMax, [string]$Unit)
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if ($Value -lt $NormalMin) {
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return "$Value $Unit ! "
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}
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if ($Value -gt $NormalMax) {
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return "$Value $Unit ! "
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}
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return ""
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}
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try {
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$Weather=(Invoke-WebRequest http://wttr.in/${GeoLocation}?format=j1 -UserAgent "curl" ).Content | ConvertFrom-Json
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$Result+=Check $Weather.current_condition.windspeedKmph 0 48 "km/h"
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$Result+=Check $Weather.current_condition.visibility 1 1000 "km visibility"
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$Result+=Check $Weather.current_condition.temp_C -20 40 "°C"
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$Result+=Check $Weather.current_condition.uvIndex 0 6 "UV"
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if ($Result -eq "") {
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echo "No weather alert"
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} else {
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echo "WEATHER ALERT: $Result"
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}
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exit 0
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} catch {
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write-error "ERROR in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
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exit 1
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}
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