multi-level wildcard
The # at the end of a topic filter, standing for that level and everything below it.
The multi-level wildcard # matches the parent level and any number of levels after it and may only appear as the last level, so home/# matches home, home/a and home/a/b.
Examples
gh/#matchesgh/bench1/temp,gh/bench1and evenghitself.A filter of just
#receives every ordinary topic, but not the broker's own$SYS/...topics.
See also