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START-STOP-DAEMON !!!START-STOP-DAEMON NAME SYNOPSIS DESCRIPTION OPTIONS AUTHORS ---- !!NAME start-stop-daemon - start and stop system daemon programs !!SYNOPSIS __start-stop-daemon -S__|__--start__ ''options'' [[__--__] ''arguments'' __start-stop-daemon -K__|__--stop__ ''options'' __start-stop-daemon -H__|__--help__ __start-stop-daemon -V__|__--version__ !!DESCRIPTION __start-stop-daemon__ is used to control the creation and termination of system-level processes. Using the __--exec__, __--pidfile__, __--user__, and __--name__ options, __start-stop-daemon__ can be configured to find existing instances of a running process. With __--start__, __start-stop-daemon__ checks for the existence of a specified process. If such a process exists, __start-stop-daemon__ does nothing, and exits with error status 1 (0 if __--oknodo__ is specified). If such a process does not exist, it starts an instance, using either the executable specified by __--exec__, (or, if specified, by __--startas__). Any arguments given after __--__ on the command line are passed unmodified to the program being started. If __--retry__ is specified then start-stop-daemon will check that the process(es) have terminated. With __--stop__, __start-stop-daemon__ also checks for the existence of a specified process. If such a process exists, __start-stop-daemon__ sends it the signal specified by __--signal__, and exits with error status 0. If such a process does not exist, __start-stop-daemon__ exits with error status 1 (0 if __--oknodo__ is specified). !!OPTIONS __-x__|__--exec__ ''executable'' Check for processes that are instances of this executable (according to __/proc/__ ''pid'' __/exe__ ). __-p__|__--pidfile__ ''pid-file'' Check for processes whose process-id is specified in ''pid-file.'' __-u__|__--user__ ''username''|''uid'' Check for processes owned by the user specified by ''username'' or ''uid.'' __-n__|__--name__ ''process-name'' Check for processes with the name ''process-name'' (according to __/proc/__ ''pid'' __/stat__ ). __-s__|__--signal__ ''signal'' With __--stop__ , specifies the signal to send to processes being stopped (default 15). __-R__|__--retry__ ''timeout''|''schedule'' With __--stop__, specifies that __start-stop-daemon__ is to check whether the process(es) do finish. It will check repeatedly whether any matching processes are running, until none are. If the processes do not exit it will then take further action as determined by the schedule. If ''timeout'' is specified instead of ''schedule'' then the schedule ''signal''__/__''timeout''__/KILL/__''timeout'' is used, where ''signal'' is the signal specified with __--signal__. ''schedule'' is a list of at least two items separated by slashes (__/__); each item may be __-__''signal-number'' or [[__-__]''signal-name'', which means to send that signal, or ''timeout'', which means to wait that many seconds for processes to exit, or __forever__, which means to repeat the rest of the schedule forever if necessary. If the end of the schedule is reached and __forever__ is not specified, then __start-stop-daemon__ exits with error status 2. If a schedule is specified, then any signal specified with __--signal__ is ignored. __-a__|__--startas__ ''pathname'' With __--start__, start the process specified by ''pathname''. If not specified, defaults to the argument given to __--exec__. __-t__|__--test__ Print actions that would be taken and set appropriate return value, but take no action. __-o__|__--oknodo__ Return exit status 0 instead of 1 if no actions are (would be) taken. __-q__|__--quiet__ Do not print informational messages; only display error messages. __-c__|__--chuid__ ''username''|''uid'' Change to this username/uid before starting the process. You can also specify a group by appending a __:__, then the group or gid in the same way as you would for the `chown' command (''user''__:__''group''). When using this option you must realize that the primary and supplemental groups are set as well, even if the __--group__ option is not specified. The __--group__ option is only for groups that the user isn't normally a member of (like adding per/process group membership for generic users like __nobody__). __-r__|__--chroot__ ''root'' Chdir and chroot to ''root'' before starting the process. Please note that the pidfile is also written after the chroot. __-b__|__--background__ Typically used with programs that don't detach on their own. This option will force __start-stop-daemon__ to fork before starting the process, and force it into the background. __WARNING: start-stop-daemon__ cannot check the exit status if the process fails to execute for __any__ reason. This is a last resort, and is only meant for programs that either make no sense forking on their own, or where it's not feasible to add the code for it to do this itself. __-N__|__--nicelevel__ This alters the prority of the process before starting it. __-m__|__--make-pidfile__ Used when starting a program that does not create its own pid file. This option will make __start-stop-daemon__ create the file referenced with __--pidfile__ and place the pid into it just before executing the process. Note, it will not be removed when stopping the program. __NOTE:__ This feature may not work in all cases. Most notably when the program being executed forks from its main process. Because of this it is usually only useful when combined with the __--background__ option. __-v__|__--verbose__ Print verbose informational messages. __-H__|__--help__ Print help information; then exit. __-V__|__--version__ Print version information; then exit. !!AUTHORS Marek Michalkiewicz Manual page by Klee Dienes ----
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