AT(1) - General Commands Manual # AT(1) - General Commands Manual
NAME # at, batch - queue, examine or delete jobs for later execution
SYNOPSIS # at [-bm] [-f file] [-l [job …]] [-q queue] -t time_arg | timespec
at -c | -r job …
batch [-m] [-f file] [-q queue] [timespec]
DESCRIPTION # at and batch read commands from standard input or a specified file which are to be executed at a later time, via the user’s shell as specified by the SHELL environment variable.
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ATQ(1) - General Commands Manual # ATQ(1) - General Commands Manual
NAME # atq - display the at(1) job queue
SYNOPSIS # atq [-cnv] [-q queue] [name …]
DESCRIPTION # atq displays the queue of jobs, created by the at(1) command, which are currently awaiting execution. Unless the user is the superuser, only the user’s own jobs will be displayed. With no flags, the queue is sorted in the order that the jobs will be executed.
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ATRM(1) - General Commands Manual # ATRM(1) - General Commands Manual
NAME # atrm - remove jobs spooled by at(1)
SYNOPSIS # atrm [-afi] [[job] [name] …]
DESCRIPTION # atrm removes jobs that were created with the at(1) command.
The options are as follows:
-a
Remove all jobs belonging to the user invoking atrm. If the user is the superuser, remove all jobs.
-f
All information regarding the removal of the specified jobs is suppressed.
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CALENDAR(1) - General Commands Manual # CALENDAR(1) - General Commands Manual
NAME # calendar - reminder service
SYNOPSIS # calendar [-abw] [-A num] [-B num] [-f calendarfile] [-t [[[cc]yy]mm]dd]
DESCRIPTION # The calendar utility checks the current directory or the directory specified by the CALENDAR_DIR environment variable for a file named calendar and displays lines that begin with either today’s date or tomorrow’s. On Fridays, events on Friday through Monday are displayed.
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CRON(8) - System Manager’s Manual # CRON(8) - System Manager’s Manual
NAME # cron - clock daemon
SYNOPSIS # cron [-n] [-l load_avg]
DESCRIPTION # The cron daemon schedules commands to be run at specified dates and times. Commands that are to be run periodically are specified within crontab(5) files. Commands that are only to be run once are scheduled via the at(1) and batch(1) commands. Normally, the cron daemon is started from the /etc/rc command script.
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CRONTAB(1) - General Commands Manual # CRONTAB(1) - General Commands Manual
NAME # crontab - maintain crontab files for individual users
SYNOPSIS # crontab [-u user] file
crontab [-e | -l | -r] [-u user]
DESCRIPTION # crontab is the program used to install, deinstall, or list the tables used to drive the cron(8) daemon. Each user can have their own crontab(5), and though these are files in /var/cron/tabs, they are not intended to be edited directly.
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SLEEP(1) - General Commands Manual # SLEEP(1) - General Commands Manual
NAME # sleep - suspend execution for an interval of time
SYNOPSIS # sleep seconds
DESCRIPTION # The sleep utility suspends execution for at least the given number of seconds. seconds must be a non-negative decimal value and may contain a fraction.
ASYNCHRONOUS EVENTS # SIGALRM
Terminate early, with a zero exit status.
EXIT STATUS # The sleep utility exits 0 on success, and >0 if an error occurs.
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