Linux命令之日期时间命令date使用实例(linux显示日期格式命令是)

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date用法1:

格式：date [OPTION]... [+FORMAT]

FORMAT controls the output. Interpreted sequences are:

%% a literal %

%a locale's abbreviated weekday name (e.g., Sun)

%A locale's full weekday name (e.g., Sunday)

%b locale's abbreviated month name (e.g., Jan)

%B locale's full month name (e.g., January)

%c locale's date and time (e.g., Thu Mar 3 :: )

%C century; like %Y, except omit last two digits (e.g., )

%d day of month (e.g., )

%D date; same as %m/%d/%y

%e day of month, space padded; same as %_d

%F full date; same as %Y-%m-%d

%g last two digits of year of ISO week number (see %G)

%G year of ISO week number (see %V); normally useful only with %V

%h same as %b

%H hour (..)

%I hour (..)

%j day of year (..)

%k hour, space padded ( 0..); same as %_H

%l hour, space padded ( 1..); same as %_I

%m month (..)

%M minute (..)

%n a newline

%N nanoseconds (..)

%p locale's equivalent of either AM or PM; blank if not known

%P like %p, but lower case

%r locale's -hour clock time (e.g., :: PM)

%R -hour hour and minute; same as %H:%M

%s seconds since -- :: UTC

%S second (..)

%t a tab

%T time; same as %H:%M:%S

%u day of week (1..7); 1 is Monday

%U week number of year, with Sunday as first day of week (..)

%V ISO week number, with Monday as first day of week (..)

%w day of week (0..6); 0 is Sunday

%W week number of year, with Monday as first day of week (..)

%x locale's date representation (e.g., //)

%X locale's time representation (e.g., ::)

%y last two digits of year (..)

%Y year

%z +hhmm numeric time zone (e.g., -)

%:z +hh:mm numeric time zone (e.g., -:)

%::z +hh:mm:ss numeric time zone (e.g., -::)

%:::z numeric time zone with : to necessary precision (e.g., -, +:)

%Z alphabetic time zone abbreviation (e.g., EDT)

By default, date pads numeric fields with zeroes. The following optional flags may follow `%':

- (hyphen) do not pad the field

_ (underscore) pad with spaces

0 (zero) pad with zeros

^ use upper case if possible

# use opposite case if possible

例如：

1.年月日复制代码代码如下:$ date +%Y%m%d.年月日，年只保留后两位复制代码代码如下:~$ date +%y%m%d.小时分钟秒复制代码代码如下:~$ date +%H%M%S.年月日时分秒复制代码代码如下:~$ date +%Y%m%d%H%M%S

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