Eliminar caracteres que no sean alfabéticos y conservar los caracteres que tengan acentos | Operating systems, scripting, PowerShell and security

PowerShell, Strings

$cadena = 'áéíóúabcdefg12345HIJKLMNOP!@#$%qrs)(*&^TUVWXyz'
$patron = '[^a-zA-Zá-úÁ-Ú]'
$cadena -replace $patron, ''

$cadena = 'áéíóúabcdefg12345HIJKLMNOP!@#$%qrs)(*&^TUVWXyz'

$patron = '[^a-zA-Zá-úÁ-Ú]'

$cadena -replace $patron, ''

Eliminar caracteres que no sean alfabéticos y conservar los caracteres que tengan acentos (Strings, PowerShell)