Date display time and date in Linux synchronized with Hwclock time

1.Date Displays system time, date

Date + "%y-%m-%d%h:%m:%s"

2015-07-02 14:32:15

Date%Y four-bit format printing year

Date%y Two-bit format printing year

Date%m Month

Date%d Day

Date%H Hours

Date%M minutes

Data%s seconds

2. time of the day before use

Date-d "-1 day" +%d

One hour before use

Date-d "-1 Hour" +%h

One minute before use

Date-d "-1 min" +%m

3. system time (date) and hardware time (Hwclock) settings and synchronization

Date-s ' mm/dd/yyyy HH:MM:SS '

Date-s ' 07/02/2015 14:55:30 ' Set system time

Write system time to hardware time

Hwclock-w set hardware time from current system time

Hwclock-s Setting the system time from the current hardware time

Date display time and date in Linux synchronized with Hwclock time