김효원, Swindler, coolx 님의 홈페이지

Computer ???

No.

192

Name.

coolx

Subject.

시간 맞추기 (date)

Main Cate.

Linux

Sub Cate.

Date.

2006-07-22 10:49

Hit.

3620 (220.76.115.27)

File.

date 를 이용하면,
현재의 시간/날을 알수 있고,

또한, 시간이나 날짜를 변경할 수 있다.

사용방법은

date
Usage: date [OPTION]... [+FORMAT]
or: date [OPTION] [MMDDhhmm[[CC]YY][.ss]]
Display the current time in the given FORMAT, or set the system date.

-d, --date=STRING display time described by STRING, not `now'
-f, --file=DATEFILE like --date once for each line of DATEFILE
-r, --reference=FILE display the last modification time of FILE
-R, --rfc-822 output RFC-822 compliant date string
-s, --set=STRING set time described by STRING
-u, --utc, --universal print or set Coordinated Universal Time
--help display this help and exit
--version output version information and exit

또한, option을 이용하면, 시간이나, 요일등만을 얻어낼수도 있다.

date +%m/%d/%H:%M

%% a literal %
%a locale's abbreviated weekday name (Sun..Sat)
%A locale's full weekday name, variable length (Sunday..Saturday)
%b locale's abbreviated month name (Jan..Dec)
%B locale's full month name, variable length (January..December)
%c locale's date and time (Sat Nov 04 12:02:33 EST 1989)
-
%c locale's date and time (Sat Nov 04 12:02:33 EST 1989)
%d day of month (01..31)
%D date (mm/dd/yy)
%e day of month, blank padded ( 1..31)
%h same as %b
%H hour (00..23)
%I hour (01..12)
%j day of year (001..366)
%k hour ( 0..23)
%l hour ( 1..12)
%m month (01..12)
%M minute (00..59)
%n a newline
%p locale's AM or PM
%r time, 12-hour (hh:mm:ss [AP]M)
%s seconds since 00:00:00, Jan 1, 1970 (a GNU extension)
%S second (00..61)
%t a horizontal tab
%T time, 24-hour (hh:mm:ss)
%U week number of year with Sunday as first day of week (00..53)
%V week number of year with Monday as first day of week (01..52)
%w day of week (0..6); 0 represents Sunday
%W week number of year with Monday as first day of week (00..53)
%x locale's date representation (mm/dd/yy)
%X locale's time representation (%H:%M:%S)
%y last two digits of year (00..99)
%Y year (1970...)
%z RFC-822 style numeric timezone (-0500) (a nonstandard extension)
%Z time zone (e.g., EDT), or nothing if no time zone is determinable

By default, date pads numeric fields with zeroes. GNU date recognizes
the following modifiers between `%' and a numeric directive.

`-' (hyphen) do not pad the field
`_' (underscore) pad the field with spaces

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