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Man Pages


Manual Reference Pages  -  USCHEDULED (8)

NAME

uscheduled - a job scheduler

CONTENTS

Synopsis
Description
Author

SYNOPSIS

uscheduled [-d DIR]

DESCRIPTION

uscheduled reads information about a number of jobs from DIR, or, if this is not given, from ~/.uschedule/.

It then sleeps until one or more of the jobs have to be run, at which point it will try to run and either reschedule or delete them.

uscheduled runs under the rights of the user for whom the programs are started. It changes to DIR on startup and runs in an own session. It doesn’t detach from the terminal or move itself into the background.

All time calculation is done in UTC.

JOB EXECUTION

If uscheduled needs to start a job the following will be done: .TP 3 * uscheduled forks a new process. .TP 3 * the new process redirects /dev/null to file descriptors one and two, if desired. .TP 3 * the new process changes to $HOME. .TP 3 * the new process executes the program. .TP 3 * uscheduled The users program will inherit the environment of the daemon, unless otherwise indicated during job creation time. The standard input will be redirected from /dev/null. By default the file descriptors one and two (standard and error output) are not redirected, meaning that the output will go into the same log files as the output of the daemon, if any.

SIGNAL HANDLING

uscheduled exits gracefully on SIGTERM. It reloads the job specifications on SIGHUP.

AUTHOR

Uwe Ohse, uwe@ohse.de

SEE ALSO

uschedule(1), uschedule_intro(7).

The homepage may be more up-to-date, see
http://www.ohse.de/uwe/uschedule.html. -->

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