PowerShell/Scripts/turn-volume-up.ps1

<#
.SYNOPSIS
	turn-volume-up.ps1 [<percent>]
.DESCRIPTION
	Turns the audio volume up (+10% by default).
.EXAMPLE
	PS> .\turn-volume-up.ps1
.NOTES
	Author:  Markus Fleschutz · License: CC0
.LINK
	https://github.com/fleschutz/PowerShell
#>

param([int]$percent = 10)

try {
	$obj = New-Object -com wscript.shell
	for ([int]$i = 0; $i -lt $percent; $i += 2) {
		$obj.SendKeys([char]175) # each tick is +2%
	}
	"🔊️ volume +$($percent)%"
	exit 0
} catch {
	write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}