Show-Calendar.ps1

param(
    [int]$Year = (Get-Date).Year,
    [int]$Month = (Get-Date).Month
)

# Set up day names
$days = @("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat")

# Print header
Write-Host ""
Write-Host (" " * 6) -NoNewline
Write-Host ("{0} {1}" -f (Get-Culture).DateTimeFormat.GetMonthName($Month), $Year) -ForegroundColor Yellow
Write-Host ""

# Print day names
foreach ($day in $days) {
    Write-Host ("{0,4}" -f $day) -NoNewline
}
Write-Host ""

# Find the first day of the month
$firstDay = Get-Date -Year $Year -Month $Month -Day 1
$startDayOfWeek = [int]$firstDay.DayOfWeek

# Print leading spaces for the first week
for ($i = 0; $i -lt $startDayOfWeek; $i++) {
    Write-Host "    " -NoNewline
}

# Print days of the month
$daysInMonth = [DateTime]::DaysInMonth($Year, $Month)
for ($day = 1; $day -le $daysInMonth; $day++) {
    $currentDate = Get-Date -Year $Year -Month $Month -Day $day
    $today = Get-Date
    if ($currentDate.Day -eq $today.Day -and $currentDate.Month -eq $today.Month -and $currentDate.Year -eq $today.Year) {
        # Highlight today's date in red
        Write-Host ("{0,4}" -f $day) -NoNewline -ForegroundColor Red
    }
    elseif ($currentDate.DayOfWeek -eq 'Friday') {
        Write-Host ("{0,4}" -f $day) -NoNewline -ForegroundColor Cyan
    }
    else {
        Write-Host ("{0,4}" -f $day) -NoNewline
    }
    if ($currentDate.DayOfWeek -eq 'Saturday') {
        Write-Host ""
    }
}
Write-Host ""