Usage: ippfind [options] regtype[,subtype][.domain.] ... [expression]
       ippfind [options] name[.regtype[.domain.]] ... [expression]
       ippfind --help
       ippfind --version
Options:
-4                      Connect using IPv4
-6                      Connect using IPv6
-T seconds              Set the browse timeout in seconds
-V version              Set default IPP version
--version               Show program version
Expressions:
-P number[-number]      Match port to number or range
-d regex                Match domain to regular expression
-h regex                Match hostname to regular expression
-l                      List attributes
-n regex                Match service name to regular expression
-N name                 Match service name to literal name value
-p                      Print URI if true
-q                      Quietly report match via exit code
-r                      True if service is remote
-s                      Print service name if true
-t key                  True if the TXT record contains the key
-u regex                Match URI to regular expression
-x utility [argument ...] ;
                        Execute program if true
--domain regex          Match domain to regular expression
--exec utility [argument ...] ;
                        Execute program if true
--host regex            Match hostname to regular expression
--literal-name name     Match service name to literal name value
--local                 True if service is local
--ls                    List attributes
--name regex            Match service name to regular expression
--path regex            Match resource path to regular expression
--port number[-number]  Match port to number or range
--print                 Print URI if true
--print-name            Print service name if true
--quiet                 Quietly report match via exit code
--remote                True if service is remote
--txt key               True if the TXT record contains the key
--txt-* regex           Match TXT record key to regular expression
--uri regex             Match URI to regular expression
Modifiers:
( expressions )         Group expressions
! expression            Unary NOT of expression
--not expression        Unary NOT of expression
--false                 Always false
--true                  Always true
expression expression   Logical AND
expression --and expression
                        Logical AND
expression --or expression
                        Logical OR
Substitutions:
{}                      URI
{service_domain}        Domain name
{service_hostname}      Fully-qualified domain name
{service_name}          Service instance name
{service_port}          Port number
{service_regtype}       DNS-SD registration type
{service_scheme}        URI scheme
{service_uri}           URI
{txt_*}                 Value of TXT record key
Environment Variables:
IPPFIND_SERVICE_DOMAIN  Domain name
IPPFIND_SERVICE_HOSTNAME
                        Fully-qualified domain name
IPPFIND_SERVICE_NAME    Service instance name
IPPFIND_SERVICE_PORT    Port number
IPPFIND_SERVICE_REGTYPE DNS-SD registration type
IPPFIND_SERVICE_SCHEME  URI scheme
IPPFIND_SERVICE_URI     URI
IPPFIND_TXT_*           Value of TXT record key