Date 명령어 사용

현재 일시

> date Fri Nov 27 11:07:02 KST 2009

일분 전

> date -d -1minutes Fri Nov 27 11:09:28 KST 2009

한시간 전

date -d +1hours Fri Nov 27 12:10:03 KST 2009

하루 전

> date -d -1days Thu Nov 26 11:09:32 KST 2009

한달 전

> date -d -1months Tue Oct 27 11:08:18 KST 2009

일년 후

> date -d +1years Sat Nov 27 11:09:01 KST 2010

일자 포멧 변경

> date '+%Y/%m/%d %H:%M:%S' 2011/02/16 13:47:05

Date --help

Usage: date [OPTION]... [+FORMAT] or: date [-u|--utc|--universal] [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 -ITIMESPEC, --iso-8601[=TIMESPEC] output date/time in ISO 8601 format. TIMESPEC=`date' for date only, `hours', `minutes', or `seconds' for date and time to the indicated precision. --iso-8601 without TIMESPEC defaults to `date'. -r, --reference=FILE display the last modification time of FILE -R, --rfc-2822 output RFC-2822 compliant date string -s, --set=STRING set time described by STRING -u, --utc, --universal print or set Coordinated Universal Time --help 이 도움말을 표시하고 끝냅니다 --version 버전 정보를 출력하고 끝냅니다 FORMAT controls the output. The only valid option for the second form specifies Coordinated Universal Time. Interpreted sequences are: %% 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 century (year divided by 100 and truncated to an integer) [00-99] %d day of month (01..31) %D date (mm/dd/yy) %e day of month, blank padded ( 1..31) %F same as %Y-%m-%d %g the 2-digit year corresponding to the %V week number %G the 4-digit year corresponding to the %V week number %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 %N nanoseconds (000000000..999999999) %p locale's upper case AM or PM indicator (blank in many locales) %P locale's lower case am or pm indicator (blank in many locales) %r time, 12-hour (hh:mm:ss [AP]M) %R time, 24-hour (hh:mm) %s seconds since `00:00:00 1970-01-01 UTC' (a GNU extension) %S second (00..60); the 60 is necessary to accommodate a leap second %t a horizontal tab %T time, 24-hour (hh:mm:ss) %u day of week (1..7); 1 represents Monday %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..53) %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-2822 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