fcron8Fcron &version; development release)]]>&date;fcrondaemon to execute scheduled tasksfcron-c file-d-b-s time-m num-q numfcron-c file-d-f-o-y-p file-l timefcron-n dirfcron-hfcron-VDescription
&Fcron; should be started from /etc/rc or
/etc/rc.local. Unless the (or
) option is given, it will return immediately, so
you don't need to start it with '&'.
&Fcron; loads users &fcrontabf;s (see &fcrontab;(5)) files previously installed by
fcrontab (see &fcrontab;(1)). Then, &fcron; calculates the time
and date of each job's next execution, and determines how long it has to sleep,
and sleeps for this amount of time. When it wakes up, it checks all jobs loaded
and runs them if needed. When a job is executed, &fcron; forks, changes its user
and group permissions to match those of the user the job is being done for,
executes that job and mails the outputs to the user (this can be changed: see
&fcrontab;(5)).
Informative message about what &fcron; is doing are sent to
syslogd(8) under facility cron,
priority notice. Warning and error messages are sent
respectively at priority warning and
error.
&fcron; sleeps at least &firstsleep; seconds after it has been started before
executing a job to avoid to use too much resources during system boot.Options
Don't fork to the background. In this mode, &fcron; will
output informational message to standard error as well as to syslogd.Force running in background, even if &fcron; has been
compiled to run in foreground as default.timetimeSave &fcrontabf;s on disk every
time sec (default is 1800).numnumSet to num the maximum number
of serial jobs which can run simultaneously. By default,
this value is set to &serialmaxrunning;.&seealso; option &optserial; in &fcrontab;(5).numnumSet to n the number of jobs the serial queue and
the lavg queue can contain.filefileMake &fcron; use config file
file instead of default config file
&etc;/&fcron.conf.location;. To interact with that running
&fcron; process, &fcrontab; must use the same config file (which is defined by
&fcrontab;'s option ). That way, several &fcron; processes
can run simultaneously on an only system (but each &fcron; process *must* have a
different spool dir and pid file from the other processes).Execute all jobs that need to be run at the time &fcron;
was started, wait for them, then return. Sets &argfirstsleep; to 0.
May be especially useful when used with options and
in a script run, for instance, at dialup connection.&seealso; fcrontab's options &optvolatile;,
&optstdout;.Don't log to syslog at all. May be useful when running
in foreground.filefileIf set, log to the file given as argument. &fcron; will
log to both that file and syslog in parallel unless
is also set.timetimeSets the initial delay (in seconds) before any job is
executed, default to &firstsleep; seconds.dirdirCreate dir as a new spool
directory for &fcron;. Set correctly its mode and owner. Then, exit.Display a brief description of the options.Display an informational message about &fcron;,
including its version and the license under which it is distributed.Run in debug mode (more details on stderr -- if option
is set -- and in log file)Return values&Fcron; returns &exitok; on normal exit, and &exiterr; on
error.SignalsSIGTERMSave configuration (time remaining until next
execution, time and date of next execution, etc), wait for all running jobs and
exit.SIGUSR1Force &fcron; to reload its configuration.SIGUSR2Make &fcron; print its current schedule on syslog. It
also toggles on/off the printing on debug info on syslog.SIGHUPTell &fcron; to check if there is any configuration
update (this signal is used by &fcrontab;(5))Conforming toShould be POSIX compliant.Files&etc;/&fcron.conf.location;Configuration file for &fcron;, &fcrontab; and
&fcrondyn;: contains paths (spool dir, pid file) and default programs to use
(editor, shell, etc). See &fcron.conf;(5)
for more details.&etc;/&fcron.allow;Users allowed to use &fcrontab; and &fcrondyn; (one
name per line, special name "all" acts for everyone)&etc;/&fcron.deny;Users who are not allowed to use &fcrontab; and
&fcrondyn; (same format as allow file)&etc;/pam.d/fcron (or
&etc;/pam.conf)PAM configuration file for
&fcron;. Take a look at &pam;(8) for more details.
&manpage-foot;