src/usr.bin/at/at.1 - diff

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Diff for /src/usr.bin/at/at.1 between version 1.55 and 1.56

version 1.55, 2018/03/16 16:58:26

version 1.56, 2022/10/22 06:41:04

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.Ar HHMM

.Ar HH:MM

to run a job at a specific time of day.

to run a job at a specific time of day

(If that time is already past, the next day is assumed.)

(if that time is already past, the next day is assumed).

You may also specify

It is also possible to specify

.Cm midnight ,

.Cm noon ,

.Cm teatime

(4pm)

(4pm),

and you can have a time-of-day suffixed with

or have a time-of-day suffixed with

.Cm AM

.Cm PM

for running in the morning or the evening.

You can also say what day the job will be run,

To say what day the job will be run,

by giving a date in the form

give a date in the form

.Ar \%month-name day

with an optional

.Ar year ,

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.Pp

The specification of a date must follow the specification of

the time of day.

You can also give times like

A time like

.Oo Cm now Oc Cm + Ar count time-units ,

.Oo Cm now Oc Cm + Ar count time-units

may be given,

where the time-units can be

.Cm minutes ,

.Cm hours ,

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.Cm years

(the singular forms are also accepted).

You can tell

To tell

.Nm at

to run the job today by suffixing the time with

to run the job today or tomorrow,

suffix the time with

.Cm today

and to run the job tomorrow by suffixing the time with

.Cm tomorrow .

The

.Cm next

keyword may be used as an alias for

.Cm + 1 .

.Pp

For example, to run a job at 4pm three days from now, you would do

For example, to run a job at 4pm three days from now, use

.Ic at 4pm + 3 days .

To run a job at 10:00am on July 31, you would do

To run a job at 10:00am on July 31, use

.Ic at 10am Jul 31 .

To run a job at 1am tomorrow, you would do

To run a job at 1am tomorrow, use

.Ic at 1am tomorrow .

To run a job at midnight in one week's time, you would do

To run a job at midnight in one week's time, use

.Ic at midnight next week .

.Pp

The

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.Nm batch

as presently implemented are not suitable when users are competing for

resources.

If this is the case for your site, you might want to consider another

If this is the case consider another batch system,

batch system, such as

such as

.Nm nqs .