Some ways to use Linux date-d

The format output type character in the date command means such as the following:

A%%a of the current locale (for example: Day, representing Sunday)%a the full name of the current locale (for example: Sunday)%b The month name of the current locale (for example: one, representing January)%b the full name of the current locale (e.g. January)% C Date and time of the current locale (e.g. Thursday, March 3, 2005 23:05:25)%c century; for example,%Y. Typically omit the two digits of the current year (such as:%d), the date of the month (for example:%m/%d/%y%e), the date of the month, equal to the date of the month, add a space, equal to the%_d%f full date format, equivalent to%y-%m-%d%giso-8601 The last two digits of the format year (see%G)%giso-8601 format year (see%V). Generally only combined with%V%h equals%b%h hours (00-23)%i hours (00-12)%j year-on-day (001-366)%k Hour, Space padded (0..23); Same as%_h%l hour, Space padded (1..12); Same as%_i%m month (01..12)%M minute (00..59)%n newline%n nanoseconds (000000000-999999999)%p "Morning" or "afternoon" under current locale. When unknown, the output is empty%p is similar to%p, but the output lowercase letter%r The 12 hour clock time under the current locale (for example: 11:11:04 pm)%r24 hours time and minutes, equivalent to%h:%m%s since 1970-01-01 00:00:00 UTC time The number of seconds%s seconds (00-60)%t output tab tab%t time, which is equal to%h:%m:%s%u week. 1 represents the week of Monday%u year. The week of the first day of the Year (00-53) in Sunday, under the%viso-8601 format specification, with Monday being the first day of the Week (01-53)%w the day of the Week (0-6), and 0 representing Monday%w the first week of the year, with Monday being the day of the Week (00-53) X date descriptive narrative under current locale (e.g. 12/31/99)%x time descriptive narrative under current locale (e.g. 23:13:48)%y year last two digits (00-99)%y year%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 The time zone abbreviations sorted alphabetically (for example. EDT)

Date-d often use demo examples and instructions:

date-d ' 2 days ago '//Show 2 day time date-d ' second ago '//show 60 seconds once date-d ' 3 months 1 day '//show March 1 days after date-d ' Dec ' + %j//show December 25 on which day of the year date-d ' 1970-01-01 00:00:30 +0000 ' +%s   //The number of seconds since UTC time 1970-01-01 00:00:00

Some ways to use Linux date-d