NAME

       jack_property - JACK client to list, set and delete metadata information

SYNOPSIS

       jack_property -l
       jack_property [ -c | -p ] -l identifier
       jack_property [ -c | -p ] -l identifier key
       jack_property [ -c | -p ] -s identifier key value [ type ]
       jack_property [ -c | -p ] -d identifier
       jack_property [ -c | -p ] -d identifier key
       jack_property -D

DESCRIPTION

       jack_property can be used to list, set and delete any and all metadata associated with the
       ports and clients of a JACK server.

       There are three main ways to use the command. The -l  option  is  used  to  list  existing
       metadata.  The  -s  option  is  used to set metadata. The -d/-D options are used to delete
       metadata.

       The identifier is normally a  UUID  (UUIDs  for  ports  and  clients  can  be  shown  with
       jack_lsp(1)).  If  the  -c option is used, then identifier will be interpreted as a client
       name, and its UUID will be looked  up  internally  and  used  for  the  relevant  metadata
       operation.  If  the  -p option is used, then identifier will be interpreted as a port name
       and its UUID  will be looked up internally and used for the relevant metadata operation.

       The key is an arbitrary string that identifies the metadata to be operated upon.

       The value is an arbitrary string that defines the value of the metadata to be created.

       The type is an optional MIME type, given as a  string.  An  empty  type  for  a  piece  of
       metadata results in it being interpreted as "text/UTF-8".

OPTIONS

       -l    list all metadata currently defined

       -l identifier
             list all metadata currently defined for identifier

       -l identifier key
             show the value of the metadata associated with key for identifier

       -d identifier
             deletes all metadata for identifier

       -d identifier key
             deletes the metadata associated with key for identifier

       -D    delete all currently defined metadata

       -s identifier key value [ type ]
             sets  the  metadata associated with key to value for identifer, with its type set to
             type if given

       -c    interpret a given identifier as a client name rather than a UUID

       -p    interpret a given identifier as a port name rather than a UUID