NetCat (nc) very simple clone on Powershell

nc-ps.ps1

<#
.SYNOPSIS
    Checks if a specified port on a given hostname is open or closed, with a simplified output.

.DESCRIPTION
    This script uses the Test-NetConnection cmdlet to attempt a TCP connection to a specified hostname and port.
    It then checks the result of this attempt to determine if the port is open (indicating the host is listening on that port)
    or if the port is closed/not reachable. The result is printed to the console with a color-coded message.

.PARAMETER hostname
    The hostname or IP address you want to check the port status for.

.PARAMETER port
    The port number you want to check the status of on the specified hostname.

.EXAMPLE
    .\ScriptName.ps1 -hostname "example.com" -port 80
    Checks if port 80 is open on example.com and prints the result.

.NOTES
    Author: [Your Name]
    Version: 1.0
    Last Modified: [Date]
#>

param(
    # The hostname or IP address to check.
    [string]$hostname,

    # The port number to check on the hostname.
    [int]$port
)

# Attempt a TCP connection using Test-NetConnection with detailed information level.
$result = Test-NetConnection -ComputerName $hostname -Port $port -InformationLevel Detailed

# Check if the TCP test succeeded (port is open) and print a success message.
if ($result.TcpTestSucceeded) {
    Write-Host "${hostname}:$port is open" -ForegroundColor Green
} else {
    # If the TCP test failed (port is closed or not reachable), print a failure message.
    Write-Host "${hostname}:$port is closed or not reachable" -ForegroundColor Red
}