sbin start-stop-daemon

from strings
Usage: start-stop-daemon [<option>...] <command>

--start -- <argument>... start a program and pass <arguments> to it
--stop stop a program
--status get the program status
--help print help information
--version print version
Matching options (at least one is required):
--pid <pid> pid to check
--ppid <ppid> parent pid to check
--pidfile <pid-file> pid file to check
--exec <executable> program to start/check if it is running
--name <process-name> process name to check
--user <username|uid> process owner to check
--group <group|gid> run process as this group
--chuid <name|uid[:group|gid]> change to this user/group before starting process
--signal <signal> signal to send (default TERM)
--startas <pathname> program to start (default is <executable>)
--chroot <directory> chroot to <directory> before starting
--chdir <directory> change to <directory> (default is /)
--nicelevel <incr> add incr to the process' nice level
--procsched <policy[:prio]> use <policy> with <prio> for the kernel process scheduler (default prio is 0)
--iosched <class[:prio]> use <class> with <prio> to set the IO scheduler (default prio is 4)
--umask <mask> change the umask to <mask> before starting
--background force the process to detach
--no-close do not close any file descriptor
--make-pidfile create the pidfile before starting
--remove-pidfile delete the pidfile after stopping
--retry <schedule> check whether processes die, and retry
--test test mode, don't do anything
--oknodo exit status 0 (not 1) if nothing done
--quiet be more quiet
--verbose be more verbose
Retry <schedule> is <item>|/<item>/... where <item> is one of -<signal-num>|[-]<signal-name> send that signal <timeout> wait that many seconds forever repeat remainder forever or <schedule> may be just <timeout>, meaning <signal>/<timeout>/KILL/<timeout> The process scheduler <policy> can be one of: other, fifo or rr The IO scheduler <class> can be one of: real-time, best-effort or idle Exit status: 0 = done 1 = nothing done (=> 0 if --oknodo) 2 = with --retry, processes would not die 3 = trouble Exit status with --status: 0 = program is running 1 = program is not running and the pid file exists 3 = program is not running 4 = unable to determine status only one command can be specified 1.18.25