usage:  fexget [-v] [-m limit] [-s filename] [-k] F*EX-URL_or_number ...
   or:  fexget [-v] -d F*EX-URL_or_number ...
   or:  fexget -l
options: -v verbose mode
         -m limit kB/s
         -s save to filename (-s- means: write to STDOUT/pipe)
         -k keep on server
         -d delete without download
         -l list files on server
argument: F*EX-URL may be file number (see: fexget -l)