PowerShell/docs/locate-city.md

Script: locate-city.ps1

This PowerShell script prints the geographic location of the given city.

Parameters

PS> ./locate-city.ps1 [[-city] <String>] [<CommonParameters>]

-city <String>
    Specifies the name of the city to look for
    
    Required?                    false
    Position?                    1
    Default value                
    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

PS> ./locate-city.ps1 Amsterdam
* Amsterdam (United States, New York, population 21241) is at 42.9420°N, -74.1907°W
* Amsterdam (Netherlands, Noord-Holland, population 1031000) is at 52.3500°N, 4.9166°W

Notes

Author: Markus Fleschutz | License: CC0

Related Links

https://github.com/fleschutz/PowerShell

Script Content

<#
.SYNOPSIS
	Prints the geographic location of a city
.DESCRIPTION
	This PowerShell script prints the geographic location of the given city.
.PARAMETER city
	Specifies the name of the city to look for
.EXAMPLE
	PS> ./locate-city.ps1 Amsterdam
	* Amsterdam (United States, New York, population 21241) is at 42.9420°N, -74.1907°W
	* Amsterdam (Netherlands, Noord-Holland, population 1031000) is at 52.3500°N, 4.9166°W
.LINK
	https://github.com/fleschutz/PowerShell
.NOTES
	Author: Markus Fleschutz | License: CC0
#>

param([string]$city = "")

try {
	if ($city -eq "" ) { $city = Read-Host "Enter the name of the city" }

	Write-Progress "Reading data/worldcities.csv..."
	$table = Import-CSV "$PSScriptRoot/../data/worldcities.csv"

	$foundOne = 0
	foreach($row in $table) {
		if ($row.city -eq $city) {
			$foundOne = 1
			$country = $row.country
			$region = $row.admin_name
			$lat = $row.lat
			$long = $row.lng
			$population = $row.population
			Write-Host "* $city ($country, $region, population $population) is at $lat°N, $long°W"
		}
	}
	if (-not $foundOne) { throw "No city '$city' found in database" }
	exit 0 # success
} catch {
	"⚠️ Error $($_.InvocationInfo.ScriptLineNumber): $($Error[0])."
	exit 1
}

(generated by convert-ps2md.ps1 using the comment-based help of locate-city.ps1 as of 08/15/2024 09:50:50)