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recoll: Usage: 
recoll [-h] [-c <configdir>] [-q query]
  -h : Print help and exit
  -c <configdir> : specify config directory, overriding $RECOLL_CONFDIR
  [-o|l|f|a] [-t] -q 'query' : search query to be executed as if entered
      into simple search. The default is to interpret the argument as a 
      query language string (but see modifier options)
      In most cases, the query string should be quoted with single-quotes to
      avoid shell interpretation
     -a : the query will be interpreted as an AND query.
     -o : the query will be interpreted as an OR query.
     -f : the query will be interpreted as a filename search
     -l : the query will be interpreted as a query language string (default)
  -t : terminal display: no gui. Results go to stdout. MUST be given
       explicitly as -t (not ie, -at), and -q <query> MUST
       be last on the command line if this is used.
       Use -t -h to see the additional non-gui options
recoll <url>
   This is used to open a recoll url (including an ipath), and called
   typically from another search interface like the Unity Dash