-j, --dump-json simulate, quiet but print JSON information.
See --output for a description of available
keys.
+ -J, --dump-single-json simulate, quiet but print JSON information
+ for each command-line argument. If the URL
+ refers to a playlist, dump the whole
+ playlist information in a single line.
--newline output progress bar as new lines
--no-progress do not print progress bar
--console-title display progress in console titlebar