How to subtract 5 minute from date

Question

I have this data:

`date +%Y-%m-%d`\" 00:00:00\"

that return 2015-10-08 00:00:00

I would like cancel 5 minute:

Answer 1

You need to subtract 5 minutes from a known point in time:

$ date -d "00:00:00 today"
Thu Oct  8 00:00:00 EDT 2015
$ date -d "00:00:00 today -5 minutes"
Wed Oct  7 23:55:00 EDT 2015

You just need to add your format string.

Answer 2

There's more than one way to subtract a value from the current time, although this should match the format shown in your question:

 date -d "-5 min" "+%Y-%m-%d %H:%M:%S"

Result:

2015-10-08 15:26:13