BASH循环时间 [英] BASH looping though time

问题描述

使用BASH我想以十分钟的间隔从开始到结束日期循环。
我试过

Using BASH I want to loop from a start to end date at ten-minute intervals. I tried

begin_date="2015-01-01 00:00:00"
end_date="2015-02-20 00:00:00"
d=$begin_date
while [ "$d" != "$end_date" ]; do
    echo $d
    d=$(date -d "${d} + 10 min" +"%Y-%m-%d %H:%M")
done

但它没有工作。查看 Bash：循环日期

#This works
d=$(date -I -d "${d} + 1 day")

#This doesn't work
d=$(date -d "${d} + 1 day" +"%Y-%m-%d")

我在格式字符串中缺少什么？

What am I missing in the format string?

推荐答案

您链接到的示例需要稍微调整：

The example you linked to just needs to be adjusted slightly:

#!/bin/bash

## User-specified dates.
# See [GNU Coreutils: Date] for more info
# [GNU Coreutils: Date]: https://www.gnu.org/software/coreutils/manual/html_node/Combined-date-and-time-of-day-items.html#Combined-date-and-time-of-day-items
begin_date="2015-01-01T00:00"
end_date="2015-01-01T00:40"

# Run through `date` to ensure iso-8601 consistency
startdate=$(date --iso-8601='minutes' --date="${begin_date}")
enddate=$(date --iso-8601='minutes' --date="${end_date}")

# Do loop
d="$startdate"
while [ "$d" != "$enddate" ]; do 
  echo $d
  d=$(date --iso-8601='minutes' --date="$d + 10 minutes")
done

请注意，选项 -I 和 -d 相当于 - iso-8601 和 - date 。

Note that the options -I and -d are equivalent to --iso-8601 and --date.

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