Usage: string2key [-54a] [--version5] [--version4] [--afs] [--cell=cell] [-c cell]
   [--password=password] [-w password] [--principal=principal] [-p principal] [--keytype=string]
   [-k string] [--version] [--help] password
-5, --version5                      Output Kerberos v5 string-to-key
-4, --version4                      Output Kerberos v4 string-to-key
-a, --afs                           Output AFS string-to-key
-c cell, --cell=cell                AFS cell to use
-w password, --password=password    Password to use
-p principal, --principal=principal Kerberos v5 principal to use
-k string, --keytype=string         Keytype
--version                           print version