AT

Section: �� α׷�� Ŵ�� (1)
Updated: 1996�� 11��
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at, batch, atq, atrm - ��߿� �� ۾�� , �˻�, ��

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at [-V] [-q queue] [-f file] [-mldbv] TIME
at -c job [job...]
atq [-V] [-q queue]
atrm [-V] job [job...]
batch [-V] [-q queue] [-f file] [-mv] [TIME]

��

at�� batch�� ߿� /bin/sh�� ̿��Ͽ� �� ǥ�� Է��̳� �� Ͽ�� о��δ�.

at: �� ð�� Ѵ�.
atq: �� ϵ� �۾� �� ش�. �� 쿡�� ۾� �� ش�. �� ۾�� ٷ� �۾� ��ȣ, ��¥, �ð�, �۾� �� ̴�.
atrm: �� ۾� ��ȣ�� ۾�� Ѵ�.
batch: �ý�� Ѵ�; ��, �� 0.8 �� Ǵ� atrun�� Ϸ� �� .

At�� POSIX.2 ǥ�ر�� Ͽ� �ſ� �� ð� ��ĵ� �� ִ�. �� Ư�� ð�� ۾�� ϱ� �� HH:MM �� ð�� Ѵ�. (�� ð�� ̹� ��ٸ� �� Ѵ�.) �� midnight, noon, �Ǵ� teatime (4pm) �� ڿ� ��ħ �Ǵ� �� Ÿ�� AM �Ǵ� PM �� ̻縦 �� ִ�. �� ۾�� ¥�� ؼ� month-name day year �� ϰų� MMDDYY �Ǵ� MM/DD/YY �Ǵ� DD.MM.YY �� ִ�. ��¥ �� �ݵ�� �ð� �� ;� �Ѵ�. �ð�� now + count time-units �� , time-units�� minutes, hours, days �Ǵ� weeks �� �� ִ�. �� ۾�� today��, �� ۾�� tomorrow�� ִ�.

�� , ��ݺ�� 3�� 4�ÿ� �۾�� Ϸ�� at 4pm + 3 days, 7�� 31�� 10:00�� ۾�� Ϸ�� at 10am Jul 31 �� 1�ÿ� �۾�� Ϸ�� at 1am tomorrow �� ϸ� �ȴ�.

�ð� �� Ȯ�� Ǵ� /usr/doc/packages/at/timespec�� ִ�.

at�� batch �� ǥ�� Է��̳� -f �ɼ�� Ͽ�� о� ��Ѵ�. �۾� ��丮, ȯ�� (TERM, DISPLAY�� _ �� ) �� umask�� ȣ�� ȴ�. su(1) �� at - �Ǵ� batch - �� ID�� ̴�. ǥ�� ǥ�� ·� ��µǴ� �� ִٸ� ��Ϸ� �ް� �ȴ�. �� /usr/sbin/sendmail �� Ͽ� ��. �� at�� su(1) �� Ǿ��ٸ� �α�� ڰ� �� ̴�.

��  ��쿡�� ɵ�� ٸ� ��ڴ� /etc/at.allow�� /etc/at.deny�� 뿡 �� ȴ�.

�� /etc/at.allow �� ϸ�, �� Ͽ� ��õ� ��ڸ�� at �� ִ�.

�� /etc/at.allow�� , /etc/at.deny�� õ�� ڰ� at�� ִ�.

�� , �� at�� ִ�.

/etc/at.deny�� Ϸ� �θ� �� ڰ� �� ְ�, �̰�� ʱ� ��̴�.

�ɼ�

-V: ǥ�� ȣ�� Ѵ�.
-q queue: �� ť�� Ѵ�. ť �̸�� ܾ�� Ǿ��ִ�; ��ȿ�� ̸�� a�� z�� A�� Z��̴�. a ť�� at�� ʱⰪ�̰� b ť�� batch�� ʱⰪ�̴�. ��ĺ� �� ̸�� ť�� ū niceness �� ´�. Ư�� "=" ť�� Ǵ� �۾�� ť�� Ǿ� �ִ�. �빮�� ̸�� ť�� ߰�� ۾�� batch�� ۾�ó�� ó��ȴ�. atq�� ť �̸�� Ǹ�, �� ť�� ִ� �۾��鸸 ��ش�.
-m: �� ۾�� Ϸ�� ڿ�� .
-f file: ǥ�� Է�� ƴ� file �� ۾� �� д´�.
-l: atq��
-d: atrm��
-v: �۾�� ð�� ش�. ȯ�� POSIXLY_CORRECT�� "1997-02-20 14:50" �� ð�� ǥ�õǰ�, ��ִ� ��쿡�� "Thu Feb 20 14:50:00 1996" �� ̴�.
-c: ��࿡ �� ۾�� ǥ�� ش�.

��

/var/spool/atjobs
/var/spool/atspool
/proc/loadavg
/var/run/utmp
/etc/at.allow
/etc/at.deny

�� ׸�

cron(1), nice(1), sh(1), umask(2), atd(8)

��

�� batch �� ùٷ� ��Ǳ� ��ؼ�� /proc�� Ʈ�� proc �� 丮�� ־�� Ѵ�.

/var/run/utmp �� ų� �ջ�� 쳪 at�� ڰ� �α�� ʾҴٸ� �� ȯ�� LOGNAME�� ڿ�� . �� ǵ�� ʾҰų� ��̶�� ڿ�� .

�� at�� batch�� ڿ�� ʿ��ϴ� ��ڿ�� ʴ�. �̷� �� nqs�� ٸ� �ϰ� �ý�� غ�� ڴ�.

��

At�� κ�� Thomas Koenig<ig25@rz.uni-karlsruhe.de>�� ۼ��Ͽ��.

��

�� <hermes44@secsm.org>, 2000�� 4�� 23��

Index

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