date用時間差計算歷史日期時間 - Linux
By Xanthe
at 2010-07-30T02:13
at 2010-07-30T02:13
Table of Contents
我知道可以算當前時間的前後
例如
date -d '1 day'
date -d '1 day ago'
或是給出歷史時間
date -d '19900101'
那能不能算
19900101 的90天後 或是90天前?
文章打到一半突然被我試出來怎麼算了
改成跟大家分享 XD
date -d ' 19900101 90 day '
date -d '19900101 90 day ago'
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