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PowerShell/Scripts/check-ipv4-address.ps1
2020-12-29 14:14:21 +00:00

29 lines
732 B
PowerShell
Executable File

#!/snap/bin/powershell
<#
.SYNTAX ./check-ipv4-address.ps1 [<address>]
.DESCRIPTION checks the given IPv4 address for validity
.LINK https://github.com/fleschutz/PowerShell
.NOTES Author: Markus Fleschutz / License: CC0
#>
param([string]$Addr)
# IPv4-Address like 192.168.178.1
$RegEx = "^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"
try {
if ($Addr -eq "" ) {
$Addr = read-host "Enter IPv4 address to validate"
}
if ($Addr -match $RegEx) {
write-output "IPv4 address $Addr is valid"
exit 0
} else {
write-output "IPv4 address $Addr is NOT valid"
exit 1
}
} catch {
write-error "ERROR in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
exit 1
}