在bash中转换日期格式

我有这样的日期格式:“ 2011年6月27日”,我想将其转换为20110627

可以用bash做吗?

回答:

#since this was yesterday

date -dyesterday +%Y%m%d

#more precise, and more recommended

date -d'27 JUN 2011' +%Y%m%d

#assuming this is similar to yesterdays `date` question from you

#http://stackoverflow.com/q/6497525/638649

date -d'last-monday' +%Y%m%d

#going on @seth's comment you could do this

DATE="27 jun 2011"; date -d"$DATE" +%Y%m%d

#or a method to read it from stdin

read -p " Get date >> " DATE; printf " AS YYYYMMDD format >> %s" `date

-d"$DATE" +%Y%m%d`

#which then outputs the following:

#Get date >> 27 june 2011

#AS YYYYMMDD format >> 20110627

#if you really want to use awk

echo "27 june 2011" | awk '{print "date -d\""$1FS$2FS$3"\" +%Y%m%d"}' | bash

#note | bash just redirects awk's output to the shell to be executed

#FS is field separator, in this case you can use $0 to print the line

#But this is useful if you have more than one date on a line

有关日期的更多信息

请注意,这仅适用于GNU日期

我读过:

-d可以通过替换sunfreeware.com版本的日期来解决无法支持的Solaris版本的日期

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