mirror of
https://github.com/fleschutz/PowerShell.git
synced 2024-11-24 00:43:35 +01:00
29 lines
732 B
PowerShell
Executable File
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
|
|
}
|