mksh-static.1 -c 'sleep 3 && echo I just woke up' & jobs(1posix)
MirBSD Korn shell
-c string  mksh will execute the command(s) contained in string.
If a command is terminated by the control operator &, the shell executes the command in the background in
a subshell.  The shell does not wait for the command to finish, and the return  status  is  0.
display status of jobs in the current session
source manpages: mksh-staticjobs