PowerShell/Scripts/check-mac-address.ps1
2022-01-29 12:47:46 +01:00

44 lines
1.0 KiB
PowerShell
Executable File

<#
.SYNOPSIS
Checks the given MAC address for validity
.DESCRIPTION
This PowerShell script checks the given MAC address for validity
Supported MAC address formats are: 00:00:00:00:00:00 or 00-00-00-00-00-00 or 000000000000.
.PARAMETER MAC
Specifies the MAC address to check
.EXAMPLE
PS> ./check-mac-address 11:22:33:44:55:66
✔️ MAC address 11:22:33:44:55:66 is valid
.LINK
https://github.com/fleschutz/PowerShell
.NOTES
Author: Markus Fleschutz / License: CC0
#>
param([string]$MAC = "")
function IsMACAddressValid { param([string]$mac)
$RegEx = "^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})|([0-9A-Fa-f]{2}){6}$"
if ($mac -match $RegEx) {
return $true
} else {
return $false
}
}
try {
if ($MAC -eq "" ) {
$MAC = read-host "Enter MAC address to validate"
}
if (IsMACAddressValid $MAC) {
"✔️ MAC address $MAC is valid"
exit 0 # success
} else {
write-warning "Invalid MAC address: $MAC"
exit 1
}
} catch {
"⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))"
exit 1
}