-h            print help message
  -i            access XPA point on different machine (override XPA_NSINET)
  -m            override XPA_METHOD environment variable
  -n            don't wait for the status message after server completes
  -s            enter server mode
  -t [s,l]      set short and long timeouts (override XPA_[SHORT,LONG]_TIMEOUT)
  -u [users]    XPA points can be from specified users (override XPA_NSUSERS)

Examples:

  csh> xpainfo IMAGE ds9 image