It is possible to open a JFR recording from command line using the open command, for example
jmc -open /Demo/recording.jfr
but a fully qualified path is needed. It would be convenient if you could just specify the filename, like this:
jmc -open recording.jfr
This is especially annoying if the path is long. I believe this used to work in earlier releases of JMC. Reproducible on Mac OS X.