问题
I have date format like 2016-02-26 14:12:36., I have to convert it into unix epoch time. I have the option to convert current time to epoch time using command : date +%s, however how to convert a specific date to epoch unix time
回答1:
On the command line you convert the date provided to the UNIX epoch time like this:
date -j -f "%Y-%m-%d %H:%M:%S" "2016-02-26 14:12:36" "+%s"
This is on os x. The manual for date have some examples and strftime have all the formatting needed.
回答2:
You can get seconds since the epoch from date like this ,
$ SECFROMEPOCH=`date --date="2016-02-26 14:12:36" +%s`
And then you can check the value that date gave back to you like this,
$ echo $SECFROMEPOCH | awk '{print strftime("%c",$1)}'
来源：https://stackoverflow.com/questions/35654377/how-to-convert-a-date-in-yyyy-mm-dd-hhmmss-to-unix-epoch-time