Linux Basics-Time format

In Linux, a variety of time formats are often used, especially in shell scripts, and the default time format is

[Email protected] ~]# datewed Dec 19:43:07 CST 2016

Note: If you have spaces in the stitching date format, you need to use "..." to indicate

Common formats are:

%Y year

%m Month (01-12)

%d date by month (ex: 01)

%H hours (00-23)

%l (1-12)

%M points (00-59)

%s seconds (00-60)

%A the weekday abbreviation of the current locale (for example: Wed)

%A the full name of the current locale (for example: Wednesday)

%b the month name of the current locale (for example, DEC)

%B the full name of the current locale (for example: December)

The date and time of the current locale of%c (for example: Wed 08:06:29 PM CST)

%c century; For example,%Y, typically omitting the last two digits of the current year (for example: 20)

%d Date by month; equal to%m/%d/%y (12/14/16)

%e date by month, add a space, equal to%_d

%F full date format, equivalent to%y-%m-%d

%g last two bits of the ISO-8601 format year (see%G)

%G ISO-8601 format year (see%V), typically used only with%V

%h equals%b (DEC)

%I Hours (00-12)

%k (0-23)

%n line break

%N nanosecond (373917787)

%p "Morning" or "afternoon" under current locale, output empty (PM) when unknown

%P similar to%P, but with output lowercase letters (PM)

%r 12-hour clock time at current locale (e.g. 11:11:04 pm)

%R 24 hours of time and minutes, equivalent to%h:%m (20:09)

%s number of seconds since UTC 1970-01-01 00:00:00 (1481717433)

%t Output Tab tab

%T time, equal to%h:%m:%s (20:11:00)

%u week, 1 stands for Monday

%u week of the year, with Sunday as the first day of the Week (00-53)

%V ISO-8601 Format Specification for the week of the year, with Monday as the first day of the Week (01-53)

%w Day of the Week (0-6), 0 for Monday

%W Week of the year, with Monday as the first day of every week (00-53)

Date description under the current locale of%x (for example: 12/31/99)

Time description Under current locale of%x (e.g. 23:13:48)

%y year last two digits (00-99)

Common operations:

[[Email protected] ~]# date "+%y-%m-%d%h:%m:%s" 2016-12-14 20:05:04[[email protected] ~]# date "+%f%T" 2016-12-14 20:13:00 [[Email protected] ~]# date +%r08:14:53 pm[[email protected] ~]# date +%awednesday[[email protected] ~]# date +%hdec

%z +HHMM Digital Time zone (for example,-0400)

%:z +hh:mm Digital Time zone (for example, -04:00)

%::z +HH:MM:SS Digital Time zone (for example, -04:00:00)

%:::z Digital time zone with the necessary precision (for example, -04,+05:30)

%Z time zone abbreviations by alphabet (for example, EDT)

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Linux Basics-Time format