Mtr>-S
--start -- <argument>... start a program and pass <arguments> to it
-K
--stop stop a program
-T
--status get the program status
-H
--help print help information
-V
--version print version
Matching options (at least one is required):
--pid <pid> pid to check
--ppid <ppid> parent pid to check
-p
--pidfile <pid-file> pid file to check
-x
--exec <executable> program to start/check if it is running
-n
--name <process-name> process name to check
-u
--user <username|uid> process owner to check
Options:
-g
--group <group|gid> run process as this group
-c
--chuid <name|uid[:group|gid]>
change to this user/group before starting
process
-s
--signal <signal> signal to send (default TERM)
-a
--startas <pathname> program to start (default is <executable>)
-r
--chroot <directory> chroot to <directory> before starting
-d
--chdir <directory> change to <directory> (default is /)
-N
--nicelevel <incr> add incr to the process' nice level
-P
--procsched <policy[:prio]>
use <policy> with <prio> for the kernel
process scheduler (default prio is 0)
-I
--iosched <class[:prio]> use <class> with <prio> to set the IO
scheduler (default prio is 4)
-k
--umask <mask> change the umask to <mask> before starting
-b
--background force the process to detach
-C
--no-close do not close any file descriptor
-m
--make-pidfile create the pidfile before starting
--remove-pidfile delete the pidfile after stopping
-R
--retry <schedule> check whether processes die, and retry
-t
--test test mode, don't do anything
-o
--oknodo exit status 0 (not 1) if nothing done
-q
--quiet be more quiet
-v
--verbose be more verbose
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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