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Gentoo Taiwan 討論區 Gentoo Linux Taiwan Forums 2004-12-08T01:22:48+08:00 https://paar.kh.edu.tw/GOT_forums/feed.php?f=30&t=42823 2004-12-08T01:22:48+08:00 2004-12-08T01:22:48+08:00 https://paar.kh.edu.tw/GOT_forums/viewtopic.php?t=42823&p=50978#p50978 <![CDATA[排程的工具： at & cron]]> 統計資料: 發表於 由 breaking — 週三 12月 08, 2004 1:22 am

]]> 2004-12-07T22:54:54+08:00 2004-12-07T22:54:54+08:00 https://paar.kh.edu.tw/GOT_forums/viewtopic.php?t=42823&p=50976#p50976 <![CDATA[排程的工具： at & cron]]> 統計資料: 發表於 由 paar — 週二 12月 07, 2004 10:54 pm

]]> 2004-12-07T16:43:28+08:00 2004-12-07T16:43:28+08:00 https://paar.kh.edu.tw/GOT_forums/viewtopic.php?t=42823&p=50971#p50971 <![CDATA[排程的工具： at & cron]]>
at只能在指定的時間或日期執行一次工作，而無法做週期性的排程。

cron則不同於at，它可以作週期性的排程工作。

若我想要作一段時間的週期性的排程工作。

例如：
23:30這時間就會執行備份檔案：30 23 * * * tar zcvf backup.tgz /home/backup

可是我又想要指定12/7至12/25內執行﹝也就是說我要在12/25 24:00時，使crontab內中的這一行消失掉，而不影響其他在cronatb中的排程﹞

這該如何做到呢？

統計資料: 發表於 由 breaking — 週二 12月 07, 2004 4:43 pm

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